130039695021 has 4 divisors (see below), whose sum is σ = 173386260032. Its totient is φ = 86693130012.

The previous prime is 130039695017. The next prime is 130039695047. The reversal of 130039695021 is 120596930031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120596930031 = 3 ⋅40198976677.

It is not a de Polignac number, because 130039695021 - 2² = 130039695017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130039695221) 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, 21673282501 + ... + 21673282506.

It is an arithmetic number, because the mean of its divisors is an integer number (43346565008).

Almost surely, 2^130039695021 is an apocalyptic number.

It is an amenable number.

130039695021 is a deficient number, since it is larger than the sum of its proper divisors (43346565011).

130039695021 is an equidigital number, since it uses as much as digits as its factorization.

130039695021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43346565010.

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 130039695021 in words is "one hundred thirty billion, thirty-nine million, six hundred ninety-five thousand, twenty-one".