231320132231 has 8 divisors (see below), whose sum is σ = 231438718224. Its totient is φ = 231201584640.

The previous prime is 231320132221. The next prime is 231320132233. The reversal of 231320132231 is 132231023132.

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 231320132231 - 2⁶ = 231320132167 is a prime.

It is a super-2 number, since 2×231320132231² (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 = 231320132197 and 231320132206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320132233) 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, 29377511 + ... + 29385383.

It is an arithmetic number, because the mean of its divisors is an integer number (28929839778).

Almost surely, 2^231320132231 is an apocalyptic number.

231320132231 is a deficient number, since it is larger than the sum of its proper divisors (118585993).

231320132231 is an equidigital number, since it uses as much as digits as its factorization.

231320132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19201.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231320132231 its reverse (132231023132), we get a palindrome (363551155363).

It can be divided in two parts, 2313201 and 32231, that added together give a palindrome (2345432).

The spelling of 231320132231 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred thirty-two thousand, two hundred thirty-one".