31023013331224 has 8 divisors (see below), whose sum is σ = 58168149996060. Its totient is φ = 15511506665608.

The previous prime is 31023013331197. The next prime is 31023013331249. The reversal of 31023013331224 is 42213331032013.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×31023013331224² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023013331192 and 31023013331201.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1938938333194 + ... + 1938938333209.

Almost surely, 2^{31023013331224} is an apocalyptic number.

It is an amenable number.

31023013331224 is a deficient number, since it is larger than the sum of its proper divisors (27145136664836).

31023013331224 is a wasteful number, since it uses less digits than its factorization.

31023013331224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877876666409 (or 3877876666405 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 31023013331224 its reverse (42213331032013), we get a palindrome (73236344363237).

The spelling of 31023013331224 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-one thousand, two hundred twenty-four".