130331030421 has 4 divisors (see below), whose sum is σ = 173774707232. Its totient is φ = 86887353612.

The previous prime is 130331030387. The next prime is 130331030429. The reversal of 130331030421 is 124030133031.

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 not a de Polignac number, because 130331030421 - 2¹⁵ = 130330997653 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 (130331030429) 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, 21721838401 + ... + 21721838406.

It is an arithmetic number, because the mean of its divisors is an integer number (43443676808).

Almost surely, 2^130331030421 is an apocalyptic number.

It is an amenable number.

130331030421 is a deficient number, since it is larger than the sum of its proper divisors (43443676811).

130331030421 is an equidigital number, since it uses as much as digits as its factorization.

130331030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43443676810.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 130331030421 its reverse (124030133031), we get a palindrome (254361163452).

The spelling of 130331030421 in words is "one hundred thirty billion, three hundred thirty-one million, thirty thousand, four hundred twenty-one".