31023043413020 has 48 divisors (see below), whose sum is σ = 68588236738560. Its totient is φ = 11754217882944.

The previous prime is 31023043412983. The next prime is 31023043413031. The reversal of 31023043413020 is 2031434032013.

It is a super-2 number, since 2×31023043413020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4160444 + ... + 8908163.

It is an arithmetic number, because the mean of its divisors is an integer number (1428921598720).

Almost surely, 2^{31023043413020} is an apocalyptic number.

It is an amenable number.

31023043413020 is an abundant number, since it is smaller than the sum of its proper divisors (37565193325540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023043413020 is a wasteful number, since it uses less digits than its factorization.

31023043413020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074882 (or 13074880 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31023043413020 its reverse (2031434032013), we get a palindrome (33054477445033).

The spelling of 31023043413020 in words is "thirty-one trillion, twenty-three billion, forty-three million, four hundred thirteen thousand, twenty".