2013123100331 has 4 divisors (see below), whose sum is σ = 2300712114672. Its totient is φ = 1725534085992.

The previous prime is 2013123100309. The next prime is 2013123100361. The reversal of 2013123100331 is 1330013213102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2013123100331 - 2¹⁴ = 2013123083947 is a prime.

It is a super-2 number, since 2×2013123100331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013123100361) 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, 143794507160 + ... + 143794507173.

It is an arithmetic number, because the mean of its divisors is an integer number (575178028668).

Almost surely, 2^{2013123100331} is an apocalyptic number.

2013123100331 is a deficient number, since it is larger than the sum of its proper divisors (287589014341).

2013123100331 is an equidigital number, since it uses as much as digits as its factorization.

2013123100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287589014340.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2013123100331 its reverse (1330013213102), we get a palindrome (3343136313433).

The spelling of 2013123100331 in words is "two trillion, thirteen billion, one hundred twenty-three million, one hundred thousand, three hundred thirty-one".