13021020233 has 12 divisors (see below), whose sum is σ = 14107104000. Its totient is φ = 12013078896.

The previous prime is 13021020211. The next prime is 13021020247. The reversal of 13021020233 is 33202012031.

It is a de Polignac number, because none of the positive numbers 2^k-13021020233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021020203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318560 + ... + 357102.

It is an arithmetic number, because the mean of its divisors is an integer number (1175592000).

Almost surely, 2^13021020233 is an apocalyptic number.

13021020233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13021020233 is a deficient number, since it is larger than the sum of its proper divisors (1086083767).

13021020233 is a wasteful number, since it uses less digits than its factorization.

13021020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40568 (or 40555 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13021020233 its reverse (33202012031), we get a palindrome (46223032264).

The spelling of 13021020233 in words is "thirteen billion, twenty-one million, twenty thousand, two hundred thirty-three".