13320100 has 18 divisors (see below), whose sum is σ = 28904834. Its totient is φ = 5328000.

The previous prime is 13320071. The next prime is 13320103. The reversal of 13320100 is 102331.

It can be written as a sum of positive squares in 3 ways, for example, as 1705636 + 11614464 = 1306^2 + 3408^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (13320103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66501 + ... + 66700.

Almost surely, 2^13320100 is an apocalyptic number.

13320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320100 is an abundant number, since it is smaller than the sum of its proper divisors (15584734).

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

13320100 is a wasteful number, since it uses less digits than its factorization.

13320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133215 (or 133208 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13320100 is about 3649.6712180688. The cubic root of 13320100 is about 237.0477450735.

Adding to 13320100 its reverse (102331), we get a palindrome (13422431).

The spelling of 13320100 in words is "thirteen million, three hundred twenty thousand, one hundred".