31020331320130 has 16 divisors (see below), whose sum is σ = 55838844040320. Its totient is φ = 12407633047152.

The previous prime is 31020331320109. The next prime is 31020331320133. The reversal of 31020331320130 is 3102313302013.

It is not an unprimeable number, because it can be changed into a prime (31020331320133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62174220 + ... + 62671159.

It is an arithmetic number, because the mean of its divisors is an integer number (3489927752520).

Almost surely, 2^{31020331320130} is an apocalyptic number.

31020331320130 is a deficient number, since it is larger than the sum of its proper divisors (24818512720190).

31020331320130 is a wasteful number, since it uses less digits than its factorization.

31020331320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124870233.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31020331320130 its reverse (3102313302013), we get a palindrome (34122644622143).

The spelling of 31020331320130 in words is "thirty-one trillion, twenty billion, three hundred thirty-one million, three hundred twenty thousand, one hundred thirty".