130440000000021 has 16 divisors (see below), whose sum is σ = 182495603612160. Its totient is φ = 82714442547440.

The previous prime is 130440000000017. The next prime is 130440000000061. The reversal of 130440000000021 is 120000000044031.

It is a cyclic number.

It is not a de Polignac number, because 130440000000021 - 2² = 130440000000017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440000000061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5280531735 + ... + 5280556436.

It is an arithmetic number, because the mean of its divisors is an integer number (11405975225760).

Almost surely, 2^{130440000000021} is an apocalyptic number.

It is an amenable number.

130440000000021 is a deficient number, since it is larger than the sum of its proper divisors (52055603612139).

130440000000021 is a wasteful number, since it uses less digits than its factorization.

130440000000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561088376.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 130440000000021 its reverse (120000000044031), we get a palindrome (250440000044052).

The spelling of 130440000000021 in words is "one hundred thirty trillion, four hundred forty billion, twenty-one", and thus it is an aban number.