232320440131231 has 4 divisors (see below), whose sum is σ = 232320475372464. Its totient is φ = 232320404890000.

The previous prime is 232320440131223. The next prime is 232320440131267. The reversal of 232320440131231 is 132131044023232.

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 232320440131231 - 2³ = 232320440131223 is a prime.

It is a super-2 number, since 2×232320440131231² (a number of 30 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 = 232320440131193 and 232320440131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232320440131201) 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, 4451395 + ... + 22010356.

It is an arithmetic number, because the mean of its divisors is an integer number (58080118843116).

Almost surely, 2^{232320440131231} is an apocalyptic number.

232320440131231 is a deficient number, since it is larger than the sum of its proper divisors (35241233).

232320440131231 is an equidigital number, since it uses as much as digits as its factorization.

232320440131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35241232.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 232320440131231 its reverse (132131044023232), we get a palindrome (364451484154463).

The spelling of 232320440131231 in words is "two hundred thirty-two trillion, three hundred twenty billion, four hundred forty million, one hundred thirty-one thousand, two hundred thirty-one".