130321044 has 72 divisors (see below), whose sum is σ = 377552448. Its totient is φ = 37128960.

The previous prime is 130321033. The next prime is 130321091. The reversal of 130321044 is 440123031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147484 + ... + 148364.

It is an arithmetic number, because the mean of its divisors is an integer number (5243784).

Almost surely, 2^130321044 is an apocalyptic number.

130321044 is a gapful number since it is divisible by the number (14) 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 130321044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188776224).

130321044 is an abundant number, since it is smaller than the sum of its proper divisors (247231404).

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

130321044 is a wasteful number, since it uses less digits than its factorization.

130321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130321044 is about 11415.8242803575. The cubic root of 130321044 is about 506.9963703159.

Adding to 130321044 its reverse (440123031), we get a palindrome (570444075).

The spelling of 130321044 in words is "one hundred thirty million, three hundred twenty-one thousand, forty-four".