130440020402420 has 48 divisors (see below), whose sum is σ = 274096902051840. Its totient is φ = 52143092741376.

The previous prime is 130440020402389. The next prime is 130440020402423. The reversal of 130440020402420 is 24204020044031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 130440020402420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440020402423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207581024 + ... + 208208456.

It is an arithmetic number, because the mean of its divisors is an integer number (5710352126080).

Almost surely, 2^{130440020402420} is an apocalyptic number.

130440020402420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130440020402420 is an abundant number, since it is smaller than the sum of its proper divisors (143656881649420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130440020402420 is a wasteful number, since it uses less digits than its factorization.

130440020402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633984 (or 633982 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 130440020402420 its reverse (24204020044031), we get a palindrome (154644040446451).

The spelling of 130440020402420 in words is "one hundred thirty trillion, four hundred forty billion, twenty million, four hundred two thousand, four hundred twenty".