130404021 has 16 divisors (see below), whose sum is σ = 194806848. Its totient is φ = 76896000.

The previous prime is 130404019. The next prime is 130404023. The reversal of 130404021 is 120404031.

It is an interprime number because it is at equal distance from previous prime (130404019) and next prime (130404023).

It is not a de Polignac number, because 130404021 - 2¹ = 130404019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130404023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52180 + ... + 54621.

It is an arithmetic number, because the mean of its divisors is an integer number (12175428).

Almost surely, 2^130404021 is an apocalyptic number.

130404021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130404021 is a deficient number, since it is larger than the sum of its proper divisors (64402827).

130404021 is a wasteful number, since it uses less digits than its factorization.

130404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106852.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 130404021 is about 11419.4579993973. The cubic root of 130404021 is about 507.1039510796.

Adding to 130404021 its reverse (120404031), we get a palindrome (250808052).

The spelling of 130404021 in words is "one hundred thirty million, four hundred four thousand, twenty-one".