231210013103131 has 4 divisors (see below), whose sum is σ = 235128826884600. Its totient is φ = 227291199321664.

The previous prime is 231210013103089. The next prime is 231210013103137. The reversal of 231210013103131 is 131301310012132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231210013103131 - 2⁴⁵ = 196025641014299 is a prime.

It is a super-2 number, since 2×231210013103131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231210013103137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959406890646 + ... + 1959406890763.

It is an arithmetic number, because the mean of its divisors is an integer number (58782206721150).

Almost surely, 2^{231210013103131} is an apocalyptic number.

231210013103131 is a deficient number, since it is larger than the sum of its proper divisors (3918813781469).

231210013103131 is an equidigital number, since it uses as much as digits as its factorization.

231210013103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918813781468.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 231210013103131 its reverse (131301310012132), we get a palindrome (362511323115263).

The spelling of 231210013103131 in words is "two hundred thirty-one trillion, two hundred ten billion, thirteen million, one hundred three thousand, one hundred thirty-one".