130302232521 has 4 divisors (see below), whose sum is σ = 173736310032. Its totient is φ = 86868155012.

The previous prime is 130302232477. The next prime is 130302232523. The reversal of 130302232521 is 125232203031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130302232521 - 2²¹ = 130300135369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130302232491 and 130302232500.

It is not an unprimeable number, because it can be changed into a prime (130302232523) 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, 21717038751 + ... + 21717038756.

It is an arithmetic number, because the mean of its divisors is an integer number (43434077508).

Almost surely, 2^130302232521 is an apocalyptic number.

It is an amenable number.

130302232521 is a deficient number, since it is larger than the sum of its proper divisors (43434077511).

130302232521 is an equidigital number, since it uses as much as digits as its factorization.

130302232521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43434077510.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 130302232521 its reverse (125232203031), we get a palindrome (255534435552).

The spelling of 130302232521 in words is "one hundred thirty billion, three hundred two million, two hundred thirty-two thousand, five hundred twenty-one".