3130111121 has 4 divisors (see below), whose sum is σ = 3132831744. Its totient is φ = 3127390500.

The previous prime is 3130111109. The next prime is 3130111181. The reversal of 3130111121 is 1211110313.

It is a happy number.

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 3130111121 - 2⁶ = 3130111057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130111096 and 3130111105.

It is not an unprimeable number, because it can be changed into a prime (3130111181) 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, 1358585 + ... + 1360886.

It is an arithmetic number, because the mean of its divisors is an integer number (783207936).

Almost surely, 2^3130111121 is an apocalyptic number.

It is an amenable number.

3130111121 is a deficient number, since it is larger than the sum of its proper divisors (2720623).

3130111121 is a wasteful number, since it uses less digits than its factorization.

3130111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720622.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 3130111121 is about 55947.3960162580. The cubic root of 3130111121 is about 1462.8055020690.

Adding to 3130111121 its reverse (1211110313), we get a palindrome (4341221434).

The spelling of 3130111121 in words is "three billion, one hundred thirty million, one hundred eleven thousand, one hundred twenty-one".