231333677321 has 2 divisors, whose sum is σ = 231333677322. Its totient is φ = 231333677320.

The previous prime is 231333677293. The next prime is 231333677347. The reversal of 231333677321 is 123776333132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220208701696 + 11124975625 = 469264^2 + 105475^2 .

It is a cyclic number.

It is not a de Polignac number, because 231333677321 - 2¹⁰ = 231333676297 is a prime.

It is not a weakly prime, because it can be changed into another prime (231333677621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115666838660 + 115666838661.

It is an arithmetic number, because the mean of its divisors is an integer number (115666838661).

Almost surely, 2^231333677321 is an apocalyptic number.

It is an amenable number.

231333677321 is a deficient number, since it is larger than the sum of its proper divisors (1).

231333677321 is an equidigital number, since it uses as much as digits as its factorization.

231333677321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 41.

The spelling of 231333677321 in words is "two hundred thirty-one billion, three hundred thirty-three million, six hundred seventy-seven thousand, three hundred twenty-one".