130021044 has 24 divisors (see below), whose sum is σ = 307224960. Its totient is φ = 42791424.

The previous prime is 130021043. The next prime is 130021051. The reversal of 130021044 is 440120031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130021043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67629 + ... + 69524.

It is an arithmetic number, because the mean of its divisors is an integer number (12801040).

Almost surely, 2^130021044 is an apocalyptic number.

It is an amenable number.

130021044 is an abundant number, since it is smaller than the sum of its proper divisors (177203916).

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

130021044 is a wasteful number, since it uses less digits than its factorization.

130021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137239 (or 137237 counting only the distinct ones).

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

The square root of 130021044 is about 11402.6770540957. The cubic root of 130021044 is about 506.6070349564.

Adding to 130021044 its reverse (440120031), we get a palindrome (570141075).

The spelling of 130021044 in words is "one hundred thirty million, twenty-one thousand, forty-four".