131130120031 has 2 divisors, whose sum is σ = 131130120032. Its totient is φ = 131130120030.

The previous prime is 131130119977. The next prime is 131130120071. The reversal of 131130120031 is 130021031131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131130120031 - 2³¹ = 128982636383 is a prime.

It is a super-2 number, since 2×131130120031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131130119987 and 131130120014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131130120071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65565060015 + 65565060016.

It is an arithmetic number, because the mean of its divisors is an integer number (65565060016).

Almost surely, 2^131130120031 is an apocalyptic number.

131130120031 is a deficient number, since it is larger than the sum of its proper divisors (1).

131130120031 is an equidigital number, since it uses as much as digits as its factorization.

131130120031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 131130120031 its reverse (130021031131), we get a palindrome (261151151162).

The spelling of 131130120031 in words is "one hundred thirty-one billion, one hundred thirty million, one hundred twenty thousand, thirty-one".