320513234499 has 16 divisors (see below), whose sum is σ = 476268979840. Its totient is φ = 213029938440.

The previous prime is 320513234399. The next prime is 320513234501. The reversal of 320513234499 is 994432315023.

320513234499 is a `hidden beast` number, since 3 + 2 + 0 + 513 + 2 + 3 + 44 + 99 = 666.

It is not a de Polignac number, because 320513234499 - 2⁹ = 320513233987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320513234099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17922877 + ... + 17940750.

It is an arithmetic number, because the mean of its divisors is an integer number (29766811240).

Almost surely, 2^320513234499 is an apocalyptic number.

320513234499 is a deficient number, since it is larger than the sum of its proper divisors (155755745341).

320513234499 is a wasteful number, since it uses less digits than its factorization.

320513234499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35863967 (or 35863961 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 320513234499 in words is "three hundred twenty billion, five hundred thirteen million, two hundred thirty-four thousand, four hundred ninety-nine".