13020203233 has 4 divisors (see below), whose sum is σ = 13022016048. Its totient is φ = 13018390420.

The previous prime is 13020203213. The next prime is 13020203269. The reversal of 13020203233 is 33230202031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020203233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13020203233.

It is not an unprimeable number, because it can be changed into a prime (13020203213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895591 + ... + 910012.

It is an arithmetic number, because the mean of its divisors is an integer number (3255504012).

Almost surely, 2^13020203233 is an apocalyptic number.

It is an amenable number.

13020203233 is a deficient number, since it is larger than the sum of its proper divisors (1812815).

13020203233 is an equidigital number, since it uses as much as digits as its factorization.

13020203233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812814.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 13020203233 its reverse (33230202031), we get a palindrome (46250405264).

The spelling of 13020203233 in words is "thirteen billion, twenty million, two hundred three thousand, two hundred thirty-three".