13033033220 has 12 divisors (see below), whose sum is σ = 27369369804. Its totient is φ = 5213213280.

The previous prime is 13033033183. The next prime is 13033033259. The reversal of 13033033220 is 2233033031.

It can be written as a sum of positive squares in 2 ways, for example, as 4135261636 + 8897771584 = 64306^2 + 94328^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 651651661 = 13033033220 / (1 + 3 + 0 + 3 + 3 + 0 + 3 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 13033033192 and 13033033201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325825811 + ... + 325825850.

It is an arithmetic number, because the mean of its divisors is an integer number (2280780817).

Almost surely, 2^13033033220 is an apocalyptic number.

13033033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13033033220 is an abundant number, since it is smaller than the sum of its proper divisors (14336336584).

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

13033033220 is a wasteful number, since it uses less digits than its factorization.

13033033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651651670 (or 651651668 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 13033033220 its reverse (2233033031), we get a palindrome (15266066251).

The spelling of 13033033220 in words is "thirteen billion, thirty-three million, thirty-three thousand, two hundred twenty".