31013230232131 has 8 divisors (see below), whose sum is σ = 35505982896480. Its totient is φ = 26536050368448.

The previous prime is 31013230232027. The next prime is 31013230232137. The reversal of 31013230232131 is 13123203231013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31013230232131 - 2⁷ = 31013230232003 is a prime.

It is a super-2 number, since 2×31013230232131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31013230232096 and 31013230232105.

It is not an unprimeable number, because it can be changed into a prime (31013230232137) 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, 3893195896 + ... + 3893203861.

It is an arithmetic number, because the mean of its divisors is an integer number (4438247862060).

Almost surely, 2^{31013230232131} is an apocalyptic number.

31013230232131 is a deficient number, since it is larger than the sum of its proper divisors (4492752664349).

31013230232131 is an equidigital number, since it uses as much as digits as its factorization.

31013230232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786400333.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31013230232131 its reverse (13123203231013), we get a palindrome (44136433463144).

The spelling of 31013230232131 in words is "thirty-one trillion, thirteen billion, two hundred thirty million, two hundred thirty-two thousand, one hundred thirty-one".