130440240213421 has 4 divisors (see below), whose sum is σ = 130502384208000. Its totient is φ = 130378096218844.

The previous prime is 130440240213403. The next prime is 130440240213431. The reversal of 130440240213421 is 124312042044031.

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 130440240213421 - 2⁵ = 130440240213389 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 (130440240213431) 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, 31071994141 + ... + 31071998338.

It is an arithmetic number, because the mean of its divisors is an integer number (32625596052000).

Almost surely, 2^{130440240213421} is an apocalyptic number.

It is an amenable number.

130440240213421 is a deficient number, since it is larger than the sum of its proper divisors (62143994579).

130440240213421 is an equidigital number, since it uses as much as digits as its factorization.

130440240213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62143994578.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 130440240213421 its reverse (124312042044031), we get a palindrome (254752282257452).

The spelling of 130440240213421 in words is "one hundred thirty trillion, four hundred forty billion, two hundred forty million, two hundred thirteen thousand, four hundred twenty-one".