2312103121 has 4 divisors (see below), whose sum is σ = 2312613952. Its totient is φ = 2311592292.

The previous prime is 2312103089. The next prime is 2312103127. The reversal of 2312103121 is 1213012132.

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 2312103121 - 2⁵ = 2312103089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312103095 and 2312103104.

It is not an unprimeable number, because it can be changed into a prime (2312103127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248565 + ... + 257698.

It is an arithmetic number, because the mean of its divisors is an integer number (578153488).

Almost surely, 2^2312103121 is an apocalyptic number.

It is an amenable number.

2312103121 is a deficient number, since it is larger than the sum of its proper divisors (510831).

2312103121 is an equidigital number, since it uses as much as digits as its factorization.

2312103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510830.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2312103121 is about 48084.3334257635. Note that the first 3 decimals coincide. The cubic root of 2312103121 is about 1322.3174626657.

Adding to 2312103121 its reverse (1213012132), we get a palindrome (3525115253).

The spelling of 2312103121 in words is "two billion, three hundred twelve million, one hundred three thousand, one hundred twenty-one".