231550550205263 has 2 divisors, whose sum is σ = 231550550205264. Its totient is φ = 231550550205262.

The previous prime is 231550550205137. The next prime is 231550550205269. The reversal of 231550550205263 is 362502055055132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231550550205263 - 2²⁴ = 231550533428047 is a prime.

It is a super-2 number, since 2×231550550205263² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231550550205269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115775275102631 + 115775275102632.

It is an arithmetic number, because the mean of its divisors is an integer number (115775275102632).

Almost surely, 2^{231550550205263} is an apocalyptic number.

231550550205263 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550550205263 is an equidigital number, since it uses as much as digits as its factorization.

231550550205263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 231550550205263 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred fifty million, two hundred five thousand, two hundred sixty-three".