31345134252 has 48 divisors (see below), whose sum is σ = 80335368960. Its totient is φ = 9468093888.

The previous prime is 31345134239. The next prime is 31345134269. The reversal of 31345134252 is 25243154313.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2983423 + ... + 2993910.

It is an arithmetic number, because the mean of its divisors is an integer number (1673653520).

Almost surely, 2^31345134252 is an apocalyptic number.

It is an amenable number.

31345134252 is an abundant number, since it is smaller than the sum of its proper divisors (48990234708).

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

31345134252 is a wasteful number, since it uses less digits than its factorization.

31345134252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977382 (or 5977380 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

Adding to 31345134252 its reverse (25243154313), we get a palindrome (56588288565).

It can be divided in two parts, 3134513 and 4252, that added together give a triangular number (3138765 = T₂₅₀₅).

The spelling of 31345134252 in words is "thirty-one billion, three hundred forty-five million, one hundred thirty-four thousand, two hundred fifty-two".