320127013 has 4 divisors (see below), whose sum is σ = 321170080. Its totient is φ = 319083948.

The previous prime is 320127007. The next prime is 320127023. The reversal of 320127013 is 310721023.

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: 310721023 = 941 ⋅330203.

It is a cyclic number.

It is not a de Polignac number, because 320127013 - 2²⁵ = 286572581 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 (320127023) 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, 521073 + ... + 521686.

It is an arithmetic number, because the mean of its divisors is an integer number (80292520).

Almost surely, 2^320127013 is an apocalyptic number.

It is an amenable number.

320127013 is a deficient number, since it is larger than the sum of its proper divisors (1043067).

320127013 is a wasteful number, since it uses less digits than its factorization.

320127013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043066.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 320127013 is about 17892.0935890689. The cubic root of 320127013 is about 684.0808621898.

Adding to 320127013 its reverse (310721023), we get a palindrome (630848036).

The spelling of 320127013 in words is "three hundred twenty million, one hundred twenty-seven thousand, thirteen".