2313123121 has 4 divisors (see below), whose sum is σ = 2320658032. Its totient is φ = 2305588212.

The previous prime is 2313123107. The next prime is 2313123151. The reversal of 2313123121 is 1213213132.

2313123121 is nontrivially palindromic in base 6.

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 2313123121 - 2¹⁹ = 2312598833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313123101) 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, 3766995 + ... + 3767608.

It is an arithmetic number, because the mean of its divisors is an integer number (580164508).

Almost surely, 2^2313123121 is an apocalyptic number.

It is an amenable number.

2313123121 is a deficient number, since it is larger than the sum of its proper divisors (7534911).

2313123121 is an equidigital number, since it uses as much as digits as its factorization.

2313123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534910.

The product of its digits is 216, while the sum is 19.

The square root of 2313123121 is about 48094.9386214392. The cubic root of 2313123121 is about 1322.5118838559.

Adding to 2313123121 its reverse (1213213132), we get a palindrome (3526336253).

The spelling of 2313123121 in words is "two billion, three hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-one".