231433823233 has 2 divisors, whose sum is σ = 231433823234. Its totient is φ = 231433823232.

The previous prime is 231433823171. The next prime is 231433823239. The reversal of 231433823233 is 332328334132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166405253184 + 65028570049 = 407928^2 + 255007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231433823233 is a prime.

It is a super-2 number, since 2×231433823233² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231433823192 and 231433823201.

It is not a weakly prime, because it can be changed into another prime (231433823239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115716911616 + 115716911617.

It is an arithmetic number, because the mean of its divisors is an integer number (115716911617).

Almost surely, 2^231433823233 is an apocalyptic number.

It is an amenable number.

231433823233 is a deficient number, since it is larger than the sum of its proper divisors (1).

231433823233 is an equidigital number, since it uses as much as digits as its factorization.

231433823233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 37.

The spelling of 231433823233 in words is "two hundred thirty-one billion, four hundred thirty-three million, eight hundred twenty-three thousand, two hundred thirty-three".