231550510414213 has 2 divisors, whose sum is σ = 231550510414214. Its totient is φ = 231550510414212.

The previous prime is 231550510414159. The next prime is 231550510414229. The reversal of 231550510414213 is 312414015055132.

231550510414213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179415496684449 + 52135013729764 = 13394607^2 + 7220458^2 .

It is a cyclic number.

It is not a de Polignac number, because 231550510414213 - 2³³ = 231541920479621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231550510414243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115775255207106 + 115775255207107.

It is an arithmetic number, because the mean of its divisors is an integer number (115775255207107).

Almost surely, 2^{231550510414213} is an apocalyptic number.

It is an amenable number.

231550510414213 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550510414213 is an equidigital number, since it uses as much as digits as its factorization.

231550510414213 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 231550510414213 its reverse (312414015055132), we get a palindrome (543964525469345).

The spelling of 231550510414213 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred ten million, four hundred fourteen thousand, two hundred thirteen".