31310425242 has 24 divisors (see below), whose sum is σ = 71409742560. Its totient is φ = 9887502600.

The previous prime is 31310425229. The next prime is 31310425247. The reversal of 31310425242 is 24252401313.

31310425242 is a `hidden beast` number, since 3 + 131 + 0 + 4 + 2 + 524 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (31310425247) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 45775134 + ... + 45775817.

It is an arithmetic number, because the mean of its divisors is an integer number (2975405940).

Almost surely, 2^31310425242 is an apocalyptic number.

31310425242 is an abundant number, since it is smaller than the sum of its proper divisors (40099317318).

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

31310425242 is a wasteful number, since it uses less digits than its factorization.

31310425242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91550978 (or 91550975 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 31310425242 its reverse (24252401313), we get a palindrome (55562826555).

The spelling of 31310425242 in words is "thirty-one billion, three hundred ten million, four hundred twenty-five thousand, two hundred forty-two".