311430000015 has 40 divisors (see below), whose sum is σ = 560254031568. Its totient is φ = 165504850560.

The previous prime is 311429999957. The next prime is 311430000017. The reversal of 311430000015 is 510000034113.

It is not a de Polignac number, because 311430000015 - 2⁸ = 311429999759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430000017) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1254457 + ... + 1482066.

Almost surely, 2^311430000015 is an apocalyptic number.

311430000015 is a deficient number, since it is larger than the sum of its proper divisors (248824031553).

311430000015 is a wasteful number, since it uses less digits than its factorization.

311430000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736821 (or 2736812 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 311430000015 its reverse (510000034113), we get a palindrome (821430034128).

The spelling of 311430000015 in words is "three hundred eleven billion, four hundred thirty million, fifteen", and thus it is an aban number.