231323202231 has 16 divisors (see below), whose sum is σ = 336495279360. Its totient is φ = 140185393920.

The previous prime is 231323202193. The next prime is 231323202289. The reversal of 231323202231 is 132202323132.

It is not a de Polignac number, because 231323202231 - 2¹⁵ = 231323169463 is a prime.

It is a super-2 number, since 2×231323202231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323202431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197766 + ... + 708348.

It is an arithmetic number, because the mean of its divisors is an integer number (21030954960).

Almost surely, 2^231323202231 is an apocalyptic number.

231323202231 is a deficient number, since it is larger than the sum of its proper divisors (105172077129).

231323202231 is a wasteful number, since it uses less digits than its factorization.

231323202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524326.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231323202231 its reverse (132202323132), we get a palindrome (363525525363).

The spelling of 231323202231 in words is "two hundred thirty-one billion, three hundred twenty-three million, two hundred two thousand, two hundred thirty-one".