31302232320112 has 40 divisors (see below), whose sum is σ = 69155271185616. Its totient is φ = 13597349784576.

The previous prime is 31302232320103. The next prime is 31302232320113. The reversal of 31302232320112 is 21102323220313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302232320113) 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 7 ways as a sum of consecutive naturals, for example, 4426217098 + ... + 4426224169.

Almost surely, 2^{31302232320112} is an apocalyptic number.

It is an amenable number.

31302232320112 is an abundant number, since it is smaller than the sum of its proper divisors (37853038865504).

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

31302232320112 is a wasteful number, since it uses less digits than its factorization.

31302232320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852441305 (or 8852441299 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31302232320112 its reverse (21102323220313), we get a palindrome (52404555540425).

The spelling of 31302232320112 in words is "thirty-one trillion, three hundred two billion, two hundred thirty-two million, three hundred twenty thousand, one hundred twelve".