231342313451231 has 4 divisors (see below), whose sum is σ = 231343338962232. Its totient is φ = 231341287940232.

The previous prime is 231342313451153. The next prime is 231342313451233. The reversal of 231342313451231 is 132154313243132.

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 231342313451231 - 2³⁸ = 231067435544287 is a prime.

It is a super-2 number, since 2×231342313451231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342313451233) 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, 512417045 + ... + 512868318.

It is an arithmetic number, because the mean of its divisors is an integer number (57835834740558).

Almost surely, 2^{231342313451231} is an apocalyptic number.

231342313451231 is a deficient number, since it is larger than the sum of its proper divisors (1025511001).

231342313451231 is a wasteful number, since it uses less digits than its factorization.

231342313451231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025511000.

The product of its digits is 155520, while the sum is 38.

Adding to 231342313451231 its reverse (132154313243132), we get a palindrome (363496626694363).

The spelling of 231342313451231 in words is "two hundred thirty-one trillion, three hundred forty-two billion, three hundred thirteen million, four hundred fifty-one thousand, two hundred thirty-one".