130521124321 has 12 divisors (see below), whose sum is σ = 157431101952. Its totient is φ = 105987076344.

The previous prime is 130521124313. The next prime is 130521124379. The reversal of 130521124321 is 123421125031.

It is not a de Polignac number, because 130521124321 - 2³ = 130521124313 is a prime.

It is a super-2 number, since 2×130521124321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130521124301) 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, 25822785 + ... + 25827838.

It is an arithmetic number, because the mean of its divisors is an integer number (13119258496).

Almost surely, 2^130521124321 is an apocalyptic number.

It is an amenable number.

130521124321 is a deficient number, since it is larger than the sum of its proper divisors (26909977631).

130521124321 is an equidigital number, since it uses as much as digits as its factorization.

130521124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51650668 (or 51650649 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 130521124321 its reverse (123421125031), we get a palindrome (253942249352).

The spelling of 130521124321 in words is "one hundred thirty billion, five hundred twenty-one million, one hundred twenty-four thousand, three hundred twenty-one".