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12031231033100 = 2252373251684063
BaseRepresentation
bin1010111100010011110101…
…0000000111111100001100
31120121011201011202222010002
42233010331100013330030
53034104430121024400
641331023215303432
72351141056300106
oct257047520077414
946534634688102
1012031231033100
1139194642a0264
121423896b1ab78
13693703b23426
142d8459714576
1515ce5eb64ed5
hexaf13d407f0c

12031231033100 has 36 divisors (see below), whose sum is σ = 26813386791744. Its totient is φ = 4682425049280.

The previous prime is 12031231033079. The next prime is 12031231033181. The reversal of 12031231033100 is 133013213021.

12031231033100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×120312310331002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1625838332 + ... + 1625845731.

Almost surely, 212031231033100 is an apocalyptic number.

12031231033100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031231033100 is an abundant number, since it is smaller than the sum of its proper divisors (14782155758644).

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

12031231033100 is a wasteful number, since it uses less digits than its factorization.

12031231033100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251684114 (or 3251684107 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12031231033100 its reverse (133013213021), we get a palindrome (12164244246121).

The spelling of 12031231033100 in words is "twelve trillion, thirty-one billion, two hundred thirty-one million, thirty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 100 148 185 370 740 925 1850 3700 3251684063 6503368126 13006736252 16258420315 32516840630 65033681260 81292101575 120312310331 162584203150 240624620662 325168406300 481249241324 601561551655 1203123103310 2406246206620 3007807758275 6015615516550 12031231033100