231340304312450 has 72 divisors (see below), whose sum is σ = 461805523994892. Its totient is φ = 86194955796480.

The previous prime is 231340304312431. The next prime is 231340304312461. The reversal of 231340304312450 is 54213403043132.

It can be written as a sum of positive squares in 18 ways, for example, as 25053698804689 + 206286605507761 = 5005367^2 + 14362681^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231340304312450.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 81122627 + ... + 83925926.

Almost surely, 2^{231340304312450} is an apocalyptic number.

231340304312450 is a deficient number, since it is larger than the sum of its proper divisors (230465219682442).

231340304312450 is a wasteful number, since it uses less digits than its factorization.

231340304312450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165048696 (or 165048674 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 231340304312450 its reverse (54213403043132), we get a palindrome (285553707355582).

The spelling of 231340304312450 in words is "two hundred thirty-one trillion, three hundred forty billion, three hundred four million, three hundred twelve thousand, four hundred fifty".