3121300131 has 48 divisors (see below), whose sum is σ = 4573360800. Its totient is φ = 1889879040.

The previous prime is 3121300099. The next prime is 3121300157. The reversal of 3121300131 is 1310031213.

It is not a de Polignac number, because 3121300131 - 2⁵ = 3121300099 is a prime.

It is a super-2 number, since 2×3121300131² = 19485029015561234322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3121300131.

It is not an unprimeable number, because it can be changed into a prime (3121300331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3092955 + ... + 3093963.

It is an arithmetic number, because the mean of its divisors is an integer number (95278350).

Almost surely, 2^3121300131 is an apocalyptic number.

3121300131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3121300131 is a deficient number, since it is larger than the sum of its proper divisors (1452060669).

3121300131 is a wasteful number, since it uses less digits than its factorization.

3121300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3121300131 is about 55868.5970022516. The cubic root of 3121300131 is about 1461.4316555097.

Adding to 3121300131 its reverse (1310031213), we get a palindrome (4431331344).

The spelling of 3121300131 in words is "three billion, one hundred twenty-one million, three hundred thousand, one hundred thirty-one".