130132778931 has 8 divisors (see below), whose sum is σ = 192789302160. Its totient is φ = 86755185936.

The previous prime is 130132778927. The next prime is 130132779013. The reversal of 130132778931 is 139877231031.

It is not a de Polignac number, because 130132778931 - 2² = 130132778927 is a prime.

It is a super-2 number, since 2×130132778931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130132778131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409866250 + ... + 2409866303.

It is an arithmetic number, because the mean of its divisors is an integer number (24098662770).

Almost surely, 2^130132778931 is an apocalyptic number.

130132778931 is a deficient number, since it is larger than the sum of its proper divisors (62656523229).

130132778931 is an equidigital number, since it uses as much as digits as its factorization.

130132778931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819732562 (or 4819732556 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 130132778931 in words is "one hundred thirty billion, one hundred thirty-two million, seven hundred seventy-eight thousand, nine hundred thirty-one".