13000325220 has 36 divisors (see below), whose sum is σ = 39434320380. Its totient is φ = 3466753344.

The previous prime is 13000325209. The next prime is 13000325237. The reversal of 13000325220 is 2252300031.

It can be written as a sum of positive squares in 2 ways, for example, as 7843936356 + 5156388864 = 88566^2 + 71808^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 13000325193 and 13000325202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36111835 + ... + 36112194.

Almost surely, 2^13000325220 is an apocalyptic number.

13000325220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000325220 is an abundant number, since it is smaller than the sum of its proper divisors (26433995160).

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

13000325220 is a wasteful number, since it uses less digits than its factorization.

13000325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72224044 (or 72224039 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 13000325220 its reverse (2252300031), we get a palindrome (15252625251).

The spelling of 13000325220 in words is "thirteen billion, three hundred twenty-five thousand, two hundred twenty".