231550510414231 has 2 divisors, whose sum is σ = 231550510414232. Its totient is φ = 231550510414230.

The previous prime is 231550510414229. The next prime is 231550510414243. The reversal of 231550510414231 is 132414015055132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231550510414231 - 2¹ = 231550510414229 is a prime.

It is a super-2 number, since 2×231550510414231² (a number of 30 digits) contains 22 as substring.

Together with 231550510414229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231550510414291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115775255207115 + 115775255207116.

It is an arithmetic number, because the mean of its divisors is an integer number (115775255207116).

Almost surely, 2^{231550510414231} is an apocalyptic number.

231550510414231 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550510414231 is an equidigital number, since it uses as much as digits as its factorization.

231550510414231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 231550510414231 its reverse (132414015055132), we get a palindrome (363964525469363).

The spelling of 231550510414231 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred ten million, four hundred fourteen thousand, two hundred thirty-one".