231322412311 has 4 divisors (see below), whose sum is σ = 231323391000. Its totient is φ = 231321433624.

The previous prime is 231322412297. The next prime is 231322412317. The reversal of 231322412311 is 113214223132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 231322412311 - 2³⁷ = 93883458839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231322412317) 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, 109380 + ... + 688918.

It is an arithmetic number, because the mean of its divisors is an integer number (57830847750).

Almost surely, 2^231322412311 is an apocalyptic number.

231322412311 is a deficient number, since it is larger than the sum of its proper divisors (978689).

231322412311 is an equidigital number, since it uses as much as digits as its factorization.

231322412311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978688.

The product of its digits is 1728, while the sum is 25.

Adding to 231322412311 its reverse (113214223132), we get a palindrome (344536635443).

The spelling of 231322412311 in words is "two hundred thirty-one billion, three hundred twenty-two million, four hundred twelve thousand, three hundred eleven".