13133221023 has 12 divisors (see below), whose sum is σ = 18961574280. Its totient is φ = 8081981856.

The previous prime is 13133220979. The next prime is 13133221033. The reversal of 13133221023 is 32012233131.

It is not a de Polignac number, because 13133221023 - 2²⁴ = 13116443807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133221033) 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, 12951388 + ... + 12952401.

It is an arithmetic number, because the mean of its divisors is an integer number (1580131190).

Almost surely, 2^13133221023 is an apocalyptic number.

13133221023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13133221023 is a deficient number, since it is larger than the sum of its proper divisors (5828353257).

13133221023 is a wasteful number, since it uses less digits than its factorization.

13133221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903818 (or 25903805 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13133221023 its reverse (32012233131), we get a palindrome (45145454154).

The spelling of 13133221023 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty-one thousand, twenty-three".