31004020044130 has 32 divisors (see below), whose sum is σ = 63784481742720. Its totient is φ = 10629152501760.

The previous prime is 31004020044091. The next prime is 31004020044139. The reversal of 31004020044130 is 3144002040013.

It is a super-2 number, since 2×31004020044130² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004020044139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15668511 + ... + 17535970.

It is an arithmetic number, because the mean of its divisors is an integer number (1993265054460).

Almost surely, 2^{31004020044130} is an apocalyptic number.

31004020044130 is an abundant number, since it is smaller than the sum of its proper divisors (32780461698590).

31004020044130 is a wasteful number, since it uses less digits than its factorization.

31004020044130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33217834.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31004020044130 its reverse (3144002040013), we get a palindrome (34148022084143).

The spelling of 31004020044130 in words is "thirty-one trillion, four billion, twenty million, forty-four thousand, one hundred thirty".