130443213421 has 4 divisors (see below), whose sum is σ = 130928132700. Its totient is φ = 129958294144.

The previous prime is 130443213409. The next prime is 130443213437. The reversal of 130443213421 is 124312344031.

It is a happy number.

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 45843092100 + 84600121321 = 214110^2 + 290861^2 .

It is a cyclic number.

It is not a de Polignac number, because 130443213421 - 2²¹ = 130441116269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130443213421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130443213821) 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, 242459236 + ... + 242459773.

It is an arithmetic number, because the mean of its divisors is an integer number (32732033175).

Almost surely, 2^130443213421 is an apocalyptic number.

It is an amenable number.

130443213421 is a deficient number, since it is larger than the sum of its proper divisors (484919279).

130443213421 is an equidigital number, since it uses as much as digits as its factorization.

130443213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484919278.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 130443213421 its reverse (124312344031), we get a palindrome (254755557452).

The spelling of 130443213421 in words is "one hundred thirty billion, four hundred forty-three million, two hundred thirteen thousand, four hundred twenty-one".