231314330405 has 4 divisors (see below), whose sum is σ = 277577196492. Its totient is φ = 185051464320.

The previous prime is 231314330399. The next prime is 231314330411. The reversal of 231314330405 is 504033413132.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (231314330399) and next prime (231314330411).

It can be written as a sum of positive squares in 2 ways, for example, as 25097530084 + 206216800321 = 158422^2 + 454111^2 .

It is not a de Polignac number, because 231314330405 - 2³⁰ = 230240588581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23131433036 + ... + 23131433045.

It is an arithmetic number, because the mean of its divisors is an integer number (69394299123).

Almost surely, 2^231314330405 is an apocalyptic number.

It is an amenable number.

231314330405 is a deficient number, since it is larger than the sum of its proper divisors (46262866087).

231314330405 is an equidigital number, since it uses as much as digits as its factorization.

231314330405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46262866086.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 231314330405 its reverse (504033413132), we get a palindrome (735347743537).

The spelling of 231314330405 in words is "two hundred thirty-one billion, three hundred fourteen million, three hundred thirty thousand, four hundred five".