130531998191 has 64 divisors (see below), whose sum is σ = 159461084160. Its totient is φ = 104537640960.

The previous prime is 130531998139. The next prime is 130531998217. The reversal of 130531998191 is 191899135031.

It is a cyclic number.

It is not a de Polignac number, because 130531998191 - 2¹⁸ = 130531736047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130531998491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123026801 + ... + 123027861.

It is an arithmetic number, because the mean of its divisors is an integer number (2491579440).

Almost surely, 2^130531998191 is an apocalyptic number.

130531998191 is a deficient number, since it is larger than the sum of its proper divisors (28929085969).

130531998191 is a wasteful number, since it uses less digits than its factorization.

130531998191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 262440, while the sum is 50.

The spelling of 130531998191 in words is "one hundred thirty billion, five hundred thirty-one million, nine hundred ninety-eight thousand, one hundred ninety-one".