130322230021 has 4 divisors (see below), whose sum is σ = 133844452492. Its totient is φ = 126800007552.

The previous prime is 130322230019. The next prime is 130322230033. The reversal of 130322230021 is 120032223031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81845199396 + 48477030625 = 286086^2 + 220175^2 .

It is a cyclic number.

It is not a de Polignac number, because 130322230021 - 2¹ = 130322230019 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 (130322230121) 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, 1761111180 + ... + 1761111253.

It is an arithmetic number, because the mean of its divisors is an integer number (33461113123).

Almost surely, 2^130322230021 is an apocalyptic number.

It is an amenable number.

130322230021 is a deficient number, since it is larger than the sum of its proper divisors (3522222471).

130322230021 is an equidigital number, since it uses as much as digits as its factorization.

130322230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522222470.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 130322230021 its reverse (120032223031), we get a palindrome (250354453052).

The spelling of 130322230021 in words is "one hundred thirty billion, three hundred twenty-two million, two hundred thirty thousand, twenty-one".