321150013 has 4 divisors (see below), whose sum is σ = 327983040. Its totient is φ = 314316988.

The previous prime is 321150001. The next prime is 321150017. The reversal of 321150013 is 310051123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310051123 = 6779 ⋅45737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321150013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321150017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416443 + ... + 3416536.

It is an arithmetic number, because the mean of its divisors is an integer number (81995760).

Almost surely, 2^321150013 is an apocalyptic number.

It is an amenable number.

321150013 is a deficient number, since it is larger than the sum of its proper divisors (6833027).

321150013 is an equidigital number, since it uses as much as digits as its factorization.

321150013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833026.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 321150013 is about 17920.6588327550. The cubic root of 321150013 is about 684.8087718112.

The spelling of 321150013 in words is "three hundred twenty-one million, one hundred fifty thousand, thirteen".