31310420652 has 72 divisors (see below), whose sum is σ = 90471902976. Its totient is φ = 8943898464.

The previous prime is 31310420641. The next prime is 31310420671. The reversal of 31310420652 is 25602401313.

31310420652 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 0 + 4 + 2 + 0 + 652 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1483123 + ... + 1504085.

It is an arithmetic number, because the mean of its divisors is an integer number (1256554208).

Almost surely, 2^31310420652 is an apocalyptic number.

It is an amenable number.

31310420652 is an abundant number, since it is smaller than the sum of its proper divisors (59161482324).

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

31310420652 is a wasteful number, since it uses less digits than its factorization.

31310420652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26907 (or 26902 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 31310420652 its reverse (25602401313), we get a palindrome (56912821965).

The spelling of 31310420652 in words is "thirty-one billion, three hundred ten million, four hundred twenty thousand, six hundred fifty-two".