130021021021 has 16 divisors (see below), whose sum is σ = 134295649920. Its totient is φ = 125822211840.

The previous prime is 130021021019. The next prime is 130021021073. The reversal of 130021021021 is 120120120031.

It is a cyclic number.

It is not a de Polignac number, because 130021021021 - 2¹ = 130021021019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130021020992 and 130021021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130021028021) 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, 2214976 + ... + 2272918.

It is an arithmetic number, because the mean of its divisors is an integer number (8393478120).

Almost surely, 2^130021021021 is an apocalyptic number.

It is an amenable number.

130021021021 is a deficient number, since it is larger than the sum of its proper divisors (4274628899).

130021021021 is an equidigital number, since it uses as much as digits as its factorization.

130021021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58596.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 130021021021 its reverse (120120120031), we get a palindrome (250141141052).

It can be divided in two parts, 1300210 and 21021, that added together give a palindrome (1321231).

The spelling of 130021021021 in words is "one hundred thirty billion, twenty-one million, twenty-one thousand, twenty-one".