31300300131 has 16 divisors (see below), whose sum is σ = 43110312960. Its totient is φ = 20179524960.

The previous prime is 31300300121. The next prime is 31300300139. The reversal of 31300300131 is 13100300313.

It is not a de Polignac number, because 31300300131 - 2¹⁷ = 31300169059 is a prime.

It is a super-2 number, since 2×31300300131² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31300300131.

It is not an unprimeable number, because it can be changed into a prime (31300300139) 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, 15136 + ... + 250658.

It is an arithmetic number, because the mean of its divisors is an integer number (2694394560).

Almost surely, 2^31300300131 is an apocalyptic number.

31300300131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31300300131 is a deficient number, since it is larger than the sum of its proper divisors (11810012829).

31300300131 is a wasteful number, since it uses less digits than its factorization.

31300300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236986.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 31300300131 its reverse (13100300313), we get a palindrome (44400600444).

The spelling of 31300300131 in words is "thirty-one billion, three hundred million, three hundred thousand, one hundred thirty-one".