31143202044004 has 48 divisors (see below), whose sum is σ = 57961112252400. Its totient is φ = 14590972256256.

The previous prime is 31143202043957. The next prime is 31143202044029. The reversal of 31143202044004 is 40044020234113.

It can be written as a sum of positive squares in 8 ways, for example, as 2106213638400 + 29036988405604 = 1451280^2 + 5388598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653517442 + ... + 653565094.

It is an arithmetic number, because the mean of its divisors is an integer number (1207523171925).

Almost surely, 2^{31143202044004} is an apocalyptic number.

31143202044004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31143202044004 is a deficient number, since it is larger than the sum of its proper divisors (26817910208396).

31143202044004 is a wasteful number, since it uses less digits than its factorization.

31143202044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89872 (or 89870 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31143202044004 its reverse (40044020234113), we get a palindrome (71187222278117).

The spelling of 31143202044004 in words is "thirty-one trillion, one hundred forty-three billion, two hundred two million, forty-four thousand, four".