130521232002 has 128 divisors (see below), whose sum is σ = 322929192960. Its totient is φ = 34345301760.

The previous prime is 130521231961. The next prime is 130521232007. The reversal of 130521232002 is 200232125031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 130521232002.

It is not an unprimeable number, because it can be changed into a prime (130521232007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10442977 + ... + 10455467.

It is an arithmetic number, because the mean of its divisors is an integer number (2522884320).

Almost surely, 2^130521232002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130521232002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161464596480).

130521232002 is an abundant number, since it is smaller than the sum of its proper divisors (192407960958).

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

130521232002 is a wasteful number, since it uses less digits than its factorization.

130521232002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 130521232002 its reverse (200232125031), we get a palindrome (330753357033).

The spelling of 130521232002 in words is "one hundred thirty billion, five hundred twenty-one million, two hundred thirty-two thousand, two".