130187431921 has 8 divisors (see below), whose sum is σ = 135859114944. Its totient is φ = 124516695600.

The previous prime is 130187431909. The next prime is 130187431951. The reversal of 130187431921 is 129134781031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130187431921 - 2¹¹ = 130187429873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130187431901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51846 + ... + 512896.

It is an arithmetic number, because the mean of its divisors is an integer number (16982389368).

Almost surely, 2^130187431921 is an apocalyptic number.

It is an amenable number.

130187431921 is a deficient number, since it is larger than the sum of its proper divisors (5671683023).

130187431921 is a wasteful number, since it uses less digits than its factorization.

130187431921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473351.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 130187431921 in words is "one hundred thirty billion, one hundred eighty-seven million, four hundred thirty-one thousand, nine hundred twenty-one".