2320013121 has 4 divisors (see below), whose sum is σ = 3093350832. Its totient is φ = 1546675412.

The previous prime is 2320013119. The next prime is 2320013161. The reversal of 2320013121 is 1213100232.

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.

It is a cyclic number.

It is not a de Polignac number, because 2320013121 - 2¹ = 2320013119 is a prime.

It is a super-2 number, since 2×2320013121² = 10764921763224321282, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320013121.

It is not an unprimeable number, because it can be changed into a prime (2320013161) 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, 386668851 + ... + 386668856.

It is an arithmetic number, because the mean of its divisors is an integer number (773337708).

Almost surely, 2^2320013121 is an apocalyptic number.

It is an amenable number.

2320013121 is a deficient number, since it is larger than the sum of its proper divisors (773337711).

2320013121 is an equidigital number, since it uses as much as digits as its factorization.

2320013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773337710.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2320013121 is about 48166.5145199442. The cubic root of 2320013121 is about 1323.8236852698.

Adding to 2320013121 its reverse (1213100232), we get a palindrome (3533113353).

The spelling of 2320013121 in words is "two billion, three hundred twenty million, thirteen thousand, one hundred twenty-one".