12102939943956 has 72 divisors (see below), whose sum is σ = 31924261736640. Its totient is φ = 3858840082944.

The previous prime is 12102939943889. The next prime is 12102939943967. The reversal of 12102939943956 is 65934993920121.

12102939943956 is a `hidden beast` number, since 1 + 2 + 102 + 9 + 3 + 99 + 439 + 5 + 6 = 666.

12102939943956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12102939943893 and 12102939943902.

It is a congruent number.

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, 68916996 + ... + 69092388.

It is an arithmetic number, because the mean of its divisors is an integer number (443392524120).

Almost surely, 2^{12102939943956} is an apocalyptic number.

It is an amenable number.

12102939943956 is an abundant number, since it is smaller than the sum of its proper divisors (19821321792684).

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

12102939943956 is a wasteful number, since it uses less digits than its factorization.

12102939943956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258765 (or 258760 counting only the distinct ones).

The product of its (nonzero) digits is 28343520, while the sum is 63.

The spelling of 12102939943956 in words is "twelve trillion, one hundred two billion, nine hundred thirty-nine million, nine hundred forty-three thousand, nine hundred fifty-six".