130323331021 has 4 divisors (see below), whose sum is σ = 140348202652. Its totient is φ = 120298459392.

The previous prime is 130323331007. The next prime is 130323331031. The reversal of 130323331021 is 120133323031.

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 76225688100 + 54097642921 = 276090^2 + 232589^2 .

It is a cyclic number.

It is not a de Polignac number, because 130323331021 - 2⁹ = 130323330509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130323330983 and 130323331001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130323331001) 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, 5012435796 + ... + 5012435821.

It is an arithmetic number, because the mean of its divisors is an integer number (35087050663).

Almost surely, 2^130323331021 is an apocalyptic number.

It is an amenable number.

130323331021 is a deficient number, since it is larger than the sum of its proper divisors (10024871631).

130323331021 is a wasteful number, since it uses less digits than its factorization.

130323331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024871630.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 130323331021 its reverse (120133323031), we get a palindrome (250456654052).

The spelling of 130323331021 in words is "one hundred thirty billion, three hundred twenty-three million, three hundred thirty-one thousand, twenty-one".