31023020030312 has 16 divisors (see below), whose sum is σ = 58243803872100. Its totient is φ = 15491338997760.

The previous prime is 31023020030269. The next prime is 31023020030329. The reversal of 31023020030312 is 21303002032013.

It can be written as a sum of positive squares in 2 ways, for example, as 29283401479396 + 1739618550916 = 5411414^2 + 1318946^2 .

It is a super-2 number, since 2×31023020030312² (a number of 28 digits) contains 22 as substring.

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, 2521370639 + ... + 2521382942.

Almost surely, 2^{31023020030312} is an apocalyptic number.

It is an amenable number.

31023020030312 is a deficient number, since it is larger than the sum of its proper divisors (27220783841788).

31023020030312 is a wasteful number, since it uses less digits than its factorization.

31023020030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042754356 (or 5042754352 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31023020030312 its reverse (21303002032013), we get a palindrome (52326022062325).

The spelling of 31023020030312 in words is "thirty-one trillion, twenty-three billion, twenty million, thirty thousand, three hundred twelve".