31715304052 has 12 divisors (see below), whose sum is σ = 55732081636. Its totient is φ = 15791852160.

The previous prime is 31715303969. The next prime is 31715304053. The reversal of 31715304052 is 25040351713.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11072511076 + 20642792976 = 105226^2 + 143676^2 .

It is a super-2 number, since 2×31715304052² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31715304053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16448883 + ... + 16450810.

Almost surely, 2^31715304052 is an apocalyptic number.

It is an amenable number.

31715304052 is a deficient number, since it is larger than the sum of its proper divisors (24016777584).

31715304052 is a wasteful number, since it uses less digits than its factorization.

31715304052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32899938 (or 32899936 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

Adding to 31715304052 its reverse (25040351713), we get a palindrome (56755655765).

The spelling of 31715304052 in words is "thirty-one billion, seven hundred fifteen million, three hundred four thousand, fifty-two".