103001221320 has 128 divisors (see below), whose sum is σ = 317076249600. Its totient is φ = 26753013504.

The previous prime is 103001221303. The next prime is 103001221321. The reversal of 103001221320 is 23122100301.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103001221320.

It is not an unprimeable number, because it can be changed into a prime (103001221321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1824639 + ... + 1880241.

It is an arithmetic number, because the mean of its divisors is an integer number (2477158200).

Almost surely, 2^103001221320 is an apocalyptic number.

103001221320 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 103001221320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158538124800).

103001221320 is an abundant number, since it is smaller than the sum of its proper divisors (214075028280).

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

103001221320 is a wasteful number, since it uses less digits than its factorization.

103001221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56019 (or 56015 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103001221320 its reverse (23122100301), we get a palindrome (126123321621).

The spelling of 103001221320 in words is "one hundred three billion, one million, two hundred twenty-one thousand, three hundred twenty".