130221023231 has 12 divisors (see below), whose sum is σ = 141237215712. Its totient is φ = 120009105216.

The previous prime is 130221023203. The next prime is 130221023287. The reversal of 130221023231 is 132320122031.

It is not a de Polignac number, because 130221023231 - 2²⁶ = 130153914367 is a prime.

It is a super-2 number, since 2×130221023231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221023291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520151 + ... + 728696.

It is an arithmetic number, because the mean of its divisors is an integer number (11769767976).

Almost surely, 2^130221023231 is an apocalyptic number.

130221023231 is a deficient number, since it is larger than the sum of its proper divisors (11016192481).

130221023231 is a wasteful number, since it uses less digits than its factorization.

130221023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249490 (or 1249477 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 130221023231 its reverse (132320122031), we get a palindrome (262541145262).

The spelling of 130221023231 in words is "one hundred thirty billion, two hundred twenty-one million, twenty-three thousand, two hundred thirty-one".