231330341131 has 4 divisors (see below), whose sum is σ = 231446765032. Its totient is φ = 231213917232.

The previous prime is 231330341119. The next prime is 231330341173. The reversal of 231330341131 is 131143033132.

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 231330341131 - 2³⁷ = 93891387659 is a prime.

It is a super-2 number, since 2×231330341131² (a number of 24 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 = 231330341096 and 231330341105.

It is not an unprimeable number, because it can be changed into a prime (231330341111) 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, 58208970 + ... + 58212943.

It is an arithmetic number, because the mean of its divisors is an integer number (57861691258).

Almost surely, 2^231330341131 is an apocalyptic number.

231330341131 is a deficient number, since it is larger than the sum of its proper divisors (116423901).

231330341131 is a wasteful number, since it uses less digits than its factorization.

231330341131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116423900.

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

Adding to 231330341131 its reverse (131143033132), we get a palindrome (362473374263).

The spelling of 231330341131 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred forty-one thousand, one hundred thirty-one".