31012300532 has 12 divisors (see below), whose sum is σ = 54273210180. Its totient is φ = 15505669056.

The previous prime is 31012300531. The next prime is 31012300549. The reversal of 31012300532 is 23500321013.

It can be written as a sum of positive squares in 2 ways, for example, as 24849108496 + 6163192036 = 157636^2 + 78506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012300531) 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 3 ways as a sum of consecutive naturals, for example, 52178 + ... + 254454.

It is an arithmetic number, because the mean of its divisors is an integer number (4522767515).

Almost surely, 2^31012300532 is an apocalyptic number.

It is an amenable number.

31012300532 is a deficient number, since it is larger than the sum of its proper divisors (23260909648).

31012300532 is a wasteful number, since it uses less digits than its factorization.

31012300532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240610 (or 240608 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 31012300532 its reverse (23500321013), we get a palindrome (54512621545).

The spelling of 31012300532 in words is "thirty-one billion, twelve million, three hundred thousand, five hundred thirty-two".