231550433320253 has 2 divisors, whose sum is σ = 231550433320254. Its totient is φ = 231550433320252.

The previous prime is 231550433320187. The next prime is 231550433320373. The reversal of 231550433320253 is 352023334055132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201434067406009 + 30116365914244 = 14192747^2 + 5487838^2 .

It is a cyclic number.

It is not a de Polignac number, because 231550433320253 - 2²⁴ = 231550416543037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231550433320253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231550433320853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115775216660126 + 115775216660127.

It is an arithmetic number, because the mean of its divisors is an integer number (115775216660127).

Almost surely, 2^{231550433320253} is an apocalyptic number.

It is an amenable number.

231550433320253 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550433320253 is an equidigital number, since it uses as much as digits as its factorization.

231550433320253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 41.

Adding to 231550433320253 its reverse (352023334055132), we get a palindrome (583573767375385).

The spelling of 231550433320253 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred thirty-three million, three hundred twenty thousand, two hundred fifty-three".