31144031210 has 16 divisors (see below), whose sum is σ = 56299858056. Its totient is φ = 12404145408.

The previous prime is 31144031207. The next prime is 31144031221. The reversal of 31144031210 is 1213044113.

It can be written as a sum of positive squares in 4 ways, for example, as 22364903401 + 8779127809 = 149549^2 + 93697^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6680939 + ... + 6685598.

Almost surely, 2^31144031210 is an apocalyptic number.

31144031210 is a deficient number, since it is larger than the sum of its proper divisors (25155826846).

31144031210 is a wasteful number, since it uses less digits than its factorization.

31144031210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13366777.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31144031210 its reverse (1213044113), we get a palindrome (32357075323).

The spelling of 31144031210 in words is "thirty-one billion, one hundred forty-four million, thirty-one thousand, two hundred ten".