130135202031 has 4 divisors (see below), whose sum is σ = 173513602712. Its totient is φ = 86756801352.

The previous prime is 130135202027. The next prime is 130135202111. The reversal of 130135202031 is 130202531031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 130135202031 - 2² = 130135202027 is a prime.

It is a super-2 number, since 2×130135202031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130135201989 and 130135202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130135202531) 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, 21689200336 + ... + 21689200341.

It is an arithmetic number, because the mean of its divisors is an integer number (43378400678).

Almost surely, 2^130135202031 is an apocalyptic number.

130135202031 is a deficient number, since it is larger than the sum of its proper divisors (43378400681).

130135202031 is an equidigital number, since it uses as much as digits as its factorization.

130135202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43378400680.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 130135202031 its reverse (130202531031), we get a palindrome (260337733062).

The spelling of 130135202031 in words is "one hundred thirty billion, one hundred thirty-five million, two hundred two thousand, thirty-one".