3113121131 has 4 divisors (see below), whose sum is σ = 3143345712. Its totient is φ = 3082896552.

The previous prime is 3113121119. The next prime is 3113121149. The reversal of 3113121131 is 1311213113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1311213113 = 7 ⋅187316159.

It is a cyclic number.

It is not a de Polignac number, because 3113121131 - 2¹⁰ = 3113120107 is a prime.

It is a super-2 number, since 2×3113121131² = 19383046352557438322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3113121331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15112136 + ... + 15112341.

It is an arithmetic number, because the mean of its divisors is an integer number (785836428).

Almost surely, 2^3113121131 is an apocalyptic number.

3113121131 is a deficient number, since it is larger than the sum of its proper divisors (30224581).

3113121131 is a wasteful number, since it uses less digits than its factorization.

3113121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30224580.

The product of its digits is 54, while the sum is 17.

The square root of 3113121131 is about 55795.3504424876. The cubic root of 3113121131 is about 1460.1540356340.

Adding to 3113121131 its reverse (1311213113), we get a palindrome (4424334244).

The spelling of 3113121131 in words is "three billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred thirty-one".