31301300000131 has 12 divisors (see below), whose sum is σ = 36419897150280. Its totient is φ = 26823657739200.

The previous prime is 31301300000119. The next prime is 31301300000137. The reversal of 31301300000131 is 13100000310313.

It is not a de Polignac number, because 31301300000131 - 2³⁵ = 31266940261763 is a prime.

It is a super-2 number, since 2×31301300000131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31301300000137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71541286 + ... + 71977483.

It is an arithmetic number, because the mean of its divisors is an integer number (3034991429190).

Almost surely, 2^{31301300000131} is an apocalyptic number.

31301300000131 is a deficient number, since it is larger than the sum of its proper divisors (5118597150149).

31301300000131 is a wasteful number, since it uses less digits than its factorization.

31301300000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143523234 (or 143523227 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31301300000131 its reverse (13100000310313), we get a palindrome (44401300310444).

The spelling of 31301300000131 in words is "thirty-one trillion, three hundred one billion, three hundred million, one hundred thirty-one", and thus it is an aban number.