130421325133520 has 80 divisors (see below), whose sum is σ = 305103989094912. Its totient is φ = 51846080832000.

The previous prime is 130421325133493. The next prime is 130421325133523. The reversal of 130421325133520 is 25331523124031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130421325133523) 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, 296453234 + ... + 296892846.

Almost surely, 2^{130421325133520} is an apocalyptic number.

130421325133520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130421325133520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152551994547456).

130421325133520 is an abundant number, since it is smaller than the sum of its proper divisors (174682663961392).

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

130421325133520 is a wasteful number, since it uses less digits than its factorization.

130421325133520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462540 (or 462534 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 130421325133520 its reverse (25331523124031), we get a palindrome (155752848257551).

The spelling of 130421325133520 in words is "one hundred thirty trillion, four hundred twenty-one billion, three hundred twenty-five million, one hundred thirty-three thousand, five hundred twenty".