31345430252 has 12 divisors (see below), whose sum is σ = 54876040800. Its totient is φ = 15666561456.

The previous prime is 31345430231. The next prime is 31345430339. The reversal of 31345430252 is 25203454313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526948 + ... + 1547339.

It is an arithmetic number, because the mean of its divisors is an integer number (4573003400).

Almost surely, 2^31345430252 is an apocalyptic number.

It is an amenable number.

31345430252 is a deficient number, since it is larger than the sum of its proper divisors (23530610548).

31345430252 is a wasteful number, since it uses less digits than its factorization.

31345430252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076840 (or 3076838 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 31345430252 its reverse (25203454313), we get a palindrome (56548884565).

The spelling of 31345430252 in words is "thirty-one billion, three hundred forty-five million, four hundred thirty thousand, two hundred fifty-two".