31324144244 has 12 divisors (see below), whose sum is σ = 55185154500. Its totient is φ = 15556957248.

The previous prime is 31324144237. The next prime is 31324144261. The reversal of 31324144244 is 44244142313.

It can be written as a sum of positive squares in 2 ways, for example, as 1330060900 + 29994083344 = 36470^2 + 173188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31324144244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26278049 + ... + 26279240.

It is an arithmetic number, because the mean of its divisors is an integer number (4598762875).

Almost surely, 2^31324144244 is an apocalyptic number.

It is an amenable number.

31324144244 is a deficient number, since it is larger than the sum of its proper divisors (23861010256).

31324144244 is a wasteful number, since it uses less digits than its factorization.

31324144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52557442 (or 52557440 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 31324144244 its reverse (44244142313), we get a palindrome (75568286557).

The spelling of 31324144244 in words is "thirty-one billion, three hundred twenty-four million, one hundred forty-four thousand, two hundred forty-four".