3130120031 has 4 divisors (see below), whose sum is σ = 3206464464. Its totient is φ = 3053775600.

The previous prime is 3130119997. The next prime is 3130120051. The reversal of 3130120031 is 1300210313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300210313 = 193 ⋅6736841.

It is a cyclic number.

It is not a de Polignac number, because 3130120031 - 2²² = 3125925727 is a prime.

It is a super-2 number, since 2×3130120031² = 19595302816934881922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130119988 and 3130120015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130120051) 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, 38172155 + ... + 38172236.

It is an arithmetic number, because the mean of its divisors is an integer number (801616116).

Almost surely, 2^3130120031 is an apocalyptic number.

3130120031 is a deficient number, since it is larger than the sum of its proper divisors (76344433).

3130120031 is an equidigital number, since it uses as much as digits as its factorization.

3130120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76344432.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 3130120031 is about 55947.4756445722. The cubic root of 3130120031 is about 1462.8068900479.

Adding to 3130120031 its reverse (1300210313), we get a palindrome (4430330344).

The spelling of 3130120031 in words is "three billion, one hundred thirty million, one hundred twenty thousand, thirty-one".