31204104455252 has 24 divisors (see below), whose sum is σ = 54885210500736. Its totient is φ = 15522618148128.

The previous prime is 31204104455197. The next prime is 31204104455351. The reversal of 31204104455252 is 25255440140213.

It is a super-2 number, since 2×31204104455252² (a number of 28 digits) contains 22 as substring.

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, 59012513 + ... + 59538935.

It is an arithmetic number, because the mean of its divisors is an integer number (2286883770864).

Almost surely, 2^{31204104455252} is an apocalyptic number.

It is an amenable number.

31204104455252 is a deficient number, since it is larger than the sum of its proper divisors (23681106045484).

31204104455252 is a wasteful number, since it uses less digits than its factorization.

31204104455252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601847 (or 601845 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 31204104455252 its reverse (25255440140213), we get a palindrome (56459544595465).

The spelling of 31204104455252 in words is "thirty-one trillion, two hundred four billion, one hundred four million, four hundred fifty-five thousand, two hundred fifty-two".