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1212113131102 = 21796135523313
BaseRepresentation
bin10001101000110111100…
…100101001011001011110
311021212200020200221000201
4101220313210221121132
5124324401430143402
62324500451014114
7153400202422036
oct21506744513136
94255606627021
101212113131102
11428066298845
12176aba29a33a
138a3c000cac3
14429491948c6
15217e3356687
hex11a3792965e

1212113131102 has 16 divisors (see below), whose sum is σ = 1831309989840. Its totient is φ = 601687516032.

The previous prime is 1212113131039. The next prime is 1212113131169. The reversal of 1212113131102 is 2011313112121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212113131102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2542203 + ... + 2981110.

It is an arithmetic number, because the mean of its divisors is an integer number (114456874365).

Almost surely, 21212113131102 is an apocalyptic number.

1212113131102 is a deficient number, since it is larger than the sum of its proper divisors (619196858738).

1212113131102 is a wasteful number, since it uses less digits than its factorization.

1212113131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524107.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1212113131102 its reverse (2011313112121), we get a palindrome (3223426243223).

The spelling of 1212113131102 in words is "one trillion, two hundred twelve billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred two".

Divisors: 1 2 179 358 613 1226 109727 219454 5523313 11046626 988673027 1977346054 3385790869 6771581738 606056565551 1212113131102