130004433021 has 4 divisors (see below), whose sum is σ = 173339244032. Its totient is φ = 86669622012.

The previous prime is 130004433011. The next prime is 130004433029. The reversal of 130004433021 is 120334400031.

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 de Polignac number, because none of the positive numbers 2^k-130004433021 is a prime.

It is a super-2 number, since 2×130004433021² (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 (130004433029) 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, 21667405501 + ... + 21667405506.

It is an arithmetic number, because the mean of its divisors is an integer number (43334811008).

Almost surely, 2^130004433021 is an apocalyptic number.

It is an amenable number.

130004433021 is a deficient number, since it is larger than the sum of its proper divisors (43334811011).

130004433021 is an equidigital number, since it uses as much as digits as its factorization.

130004433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43334811010.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 130004433021 its reverse (120334400031), we get a palindrome (250338833052).

The spelling of 130004433021 in words is "one hundred thirty billion, four million, four hundred thirty-three thousand, twenty-one".