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12031213011030 = 2335307131450853
BaseRepresentation
bin1010111100010011110000…
…1011011000000001010110
31120121011122220212100111000
42233010330023120001112
53034104411012323110
641331021333124130
72351140450146453
oct257047413300126
946534586770430
1012031213011030
113919455100a94
121423890a89646
13693700183395
142d845718282a
1515ce5d2a51c0
hexaf13c2d8056

12031213011030 has 64 divisors (see below), whose sum is σ = 32084301424320. Its totient is φ = 3208216796928.

The previous prime is 12031213011011. The next prime is 12031213011107. The reversal of 12031213011030 is 3011031213021.

12031213011030 is a `hidden beast` number, since 1 + 20 + 312 + 1 + 301 + 1 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12031213010994 and 12031213011012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7567084 + ... + 9017936.

It is an arithmetic number, because the mean of its divisors is an integer number (501317209755).

Almost surely, 212031213011030 is an apocalyptic number.

12031213011030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031213011030 is an abundant number, since it is smaller than the sum of its proper divisors (20053088413290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031213011030 is a wasteful number, since it uses less digits than its factorization.

12031213011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481582 (or 1481576 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12031213011030 its reverse (3011031213021), we get a palindrome (15042244224051).

The spelling of 12031213011030 in words is "twelve trillion, thirty-one billion, two hundred thirteen million, eleven thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 30713 61426 92139 153565 184278 276417 307130 460695 552834 829251 921390 1382085 1450853 1658502 2764170 2901706 4146255 4352559 7254265 8292510 8705118 13057677 14508530 21762795 26115354 39173031 43525590 65288385 78346062 130576770 195865155 391730310 44560048189 89120096378 133680144567 222800240945 267360289134 401040433701 445600481890 668400722835 802080867402 1203121301103 1336801445670 2005202168505 2406242602206 4010404337010 6015606505515 12031213011030