31121430044202 has 24 divisors (see below), whose sum is σ = 67430104447680. Its totient is φ = 10373757806760.

The previous prime is 31121430044119. The next prime is 31121430044239. The reversal of 31121430044202 is 20244003412113.

31121430044202 is a `hidden beast` number, since 3 + 1 + 1 + 21 + 430 + 0 + 4 + 4 + 202 = 666.

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, 586674 + ... + 7911197.

It is an arithmetic number, because the mean of its divisors is an integer number (2809587685320).

Almost surely, 2^{31121430044202} is an apocalyptic number.

31121430044202 is an abundant number, since it is smaller than the sum of its proper divisors (36308674403478).

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

31121430044202 is a wasteful number, since it uses less digits than its factorization.

31121430044202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701338 (or 8701335 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31121430044202 its reverse (20244003412113), we get a palindrome (51365433456315).

The spelling of 31121430044202 in words is "thirty-one trillion, one hundred twenty-one billion, four hundred thirty million, forty-four thousand, two hundred two".