2399120131 has 2 divisors, whose sum is σ = 2399120132. Its totient is φ = 2399120130.

The previous prime is 2399120117. The next prime is 2399120137. The reversal of 2399120131 is 1310219932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2399120131 - 2²³ = 2390731523 is a prime.

It is a super-2 number, since 2×2399120131² = 11511554805938914322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2399120093 and 2399120102.

It is not a weakly prime, because it can be changed into another prime (2399120137) 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 as a sum of consecutive naturals, namely, 1199560065 + 1199560066.

It is an arithmetic number, because the mean of its divisors is an integer number (1199560066).

Almost surely, 2^2399120131 is an apocalyptic number.

2399120131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399120131 is an equidigital number, since it uses as much as digits as its factorization.

2399120131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 2399120131 is about 48980.8139070800. The cubic root of 2399120131 is about 1338.7022653602.

The spelling of 2399120131 in words is "two billion, three hundred ninety-nine million, one hundred twenty thousand, one hundred thirty-one".