31312124022224 has 20 divisors (see below), whose sum is σ = 60693930746436. Its totient is φ = 15649174152192.

The previous prime is 31312124022149. The next prime is 31312124022259. The reversal of 31312124022224 is 42222042121313.

It can be written as a sum of positive squares in 2 ways, for example, as 25925083022224 + 5387041000000 = 5091668^2 + 2321000^2 .

It is a super-2 number, since 2×31312124022224² (a number of 28 digits) contains 22 as substring.

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, 430453679 + ... + 430526414.

Almost surely, 2^{31312124022224} is an apocalyptic number.

It is an amenable number.

31312124022224 is a deficient number, since it is larger than the sum of its proper divisors (29381806724212).

31312124022224 is a wasteful number, since it uses less digits than its factorization.

31312124022224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860982374 (or 860982368 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31312124022224 its reverse (42222042121313), we get a palindrome (73534166143537).

The spelling of 31312124022224 in words is "thirty-one trillion, three hundred twelve billion, one hundred twenty-four million, twenty-two thousand, two hundred twenty-four".