231313022575751 has 2 divisors, whose sum is σ = 231313022575752. Its totient is φ = 231313022575750.

The previous prime is 231313022575699. The next prime is 231313022575799. The reversal of 231313022575751 is 157575220313132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231313022575751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231313022575696 and 231313022575705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231313022175751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115656511287875 + 115656511287876.

It is an arithmetic number, because the mean of its divisors is an integer number (115656511287876).

Almost surely, 2^{231313022575751} is an apocalyptic number.

231313022575751 is a deficient number, since it is larger than the sum of its proper divisors (1).

231313022575751 is an equidigital number, since it uses as much as digits as its factorization.

231313022575751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323000, while the sum is 47.

Adding to 231313022575751 its reverse (157575220313132), we get a palindrome (388888242888883).

The spelling of 231313022575751 in words is "two hundred thirty-one trillion, three hundred thirteen billion, twenty-two million, five hundred seventy-five thousand, seven hundred fifty-one".