31324111012 has 12 divisors (see below), whose sum is σ = 54818747676. Its totient is φ = 15661611680.

The previous prime is 31324110989. The next prime is 31324111031. The reversal of 31324111012 is 21011142313.

It can be written as a sum of positive squares in 2 ways, for example, as 9282551716 + 22041559296 = 96346^2 + 148464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87138 + ... + 265030.

It is an arithmetic number, because the mean of its divisors is an integer number (4568228973).

Almost surely, 2^31324111012 is an apocalyptic number.

It is an amenable number.

31324111012 is a deficient number, since it is larger than the sum of its proper divisors (23494636664).

31324111012 is a wasteful number, since it uses less digits than its factorization.

31324111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221918 (or 221916 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31324111012 its reverse (21011142313), we get a palindrome (52335253325).

The spelling of 31324111012 in words is "thirty-one billion, three hundred twenty-four million, one hundred eleven thousand, twelve".