130440020240021 has 16 divisors (see below), whose sum is σ = 147147378902400. Its totient is φ = 115007293482048.

The previous prime is 130440020240009. The next prime is 130440020240029. The reversal of 130440020240021 is 120042020044031.

It is a cyclic number.

It is not a de Polignac number, because 130440020240021 - 2¹⁸ = 130440019977877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440020240029) 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 15 ways as a sum of consecutive naturals, for example, 4033629086 + ... + 4033661423.

It is an arithmetic number, because the mean of its divisors is an integer number (9196711181400).

Almost surely, 2^{130440020240021} is an apocalyptic number.

It is an amenable number.

130440020240021 is a deficient number, since it is larger than the sum of its proper divisors (16707358662379).

130440020240021 is a wasteful number, since it uses less digits than its factorization.

130440020240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067290588.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 130440020240021 its reverse (120042020044031), we get a palindrome (250482040284052).

The spelling of 130440020240021 in words is "one hundred thirty trillion, four hundred forty billion, twenty million, two hundred forty thousand, twenty-one".