231032230131 has 8 divisors (see below), whose sum is σ = 308147797440. Its totient is φ = 153969074792.

The previous prime is 231032230129. The next prime is 231032230157. The reversal of 231032230131 is 131032230132.

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 231032230131 - 2¹ = 231032230129 is a prime.

It is a super-2 number, since 2×231032230131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231032230098 and 231032230107.

It is not an unprimeable number, because it can be changed into a prime (231032234131) 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, 13092705 + ... + 13110338.

It is an arithmetic number, because the mean of its divisors is an integer number (38518474680).

Almost surely, 2^231032230131 is an apocalyptic number.

231032230131 is a deficient number, since it is larger than the sum of its proper divisors (77115567309).

231032230131 is a wasteful number, since it uses less digits than its factorization.

231032230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26205985.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231032230131 its reverse (131032230132), we get a palindrome (362064460263).

Subtracting from 231032230131 its reverse (131032230132), we obtain a palindrome (99999999999).

The spelling of 231032230131 in words is "two hundred thirty-one billion, thirty-two million, two hundred thirty thousand, one hundred thirty-one".