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1202121203130 = 2325101132246557
BaseRepresentation
bin10001011111100100000…
…000011101110110111010
311020220212220010101122100
4101133210000131312322
5124143421012000010
62320125153204230
7152564453426511
oct21374400356672
94226786111570
101202121203130
114238a9097431
12174b8bb60676
1389489bba7a3
144227c133678
152140b0402c0
hex117e401ddba

1202121203130 has 48 divisors (see below), whose sum is σ = 3156460846344. Its totient is φ = 317391734400.

The previous prime is 1202121203111. The next prime is 1202121203159. The reversal of 1202121203130 is 313021212021.

1202121203130 is a `hidden beast` number, since 1 + 20 + 212 + 120 + 313 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1166963828121 + 35157375009 = 1080261^2 + 187503^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66114189 + ... + 66132368.

Almost surely, 21202121203130 is an apocalyptic number.

1202121203130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1202121203130 is an abundant number, since it is smaller than the sum of its proper divisors (1954339643214).

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

1202121203130 is a wasteful number, since it uses less digits than its factorization.

1202121203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132246671 (or 132246668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1202121203130 its reverse (313021212021), we get a palindrome (1515142415151).

The spelling of 1202121203130 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 101 202 303 505 606 909 1010 1515 1818 3030 4545 9090 132246557 264493114 396739671 661232785 793479342 1190219013 1322465570 1983698355 2380438026 3967396710 5951095065 11902190130 13356902257 26713804514 40070706771 66784511285 80141413542 120212120313 133569022570 200353533855 240424240626 400707067710 601060601565 1202121203130