13021323001 has 4 divisors (see below), whose sum is σ = 13026062500. Its totient is φ = 13016583504.

The previous prime is 13021322983. The next prime is 13021323041. The reversal of 13021323001 is 10032312031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7064570601 + 5956752400 = 84051^2 + 77180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13021323001 - 2²⁵ = 12987768569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021323041) 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, 2365626 + ... + 2371123.

It is an arithmetic number, because the mean of its divisors is an integer number (3256515625).

Almost surely, 2^13021323001 is an apocalyptic number.

It is an amenable number.

13021323001 is a deficient number, since it is larger than the sum of its proper divisors (4739499).

13021323001 is an equidigital number, since it uses as much as digits as its factorization.

13021323001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739498.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13021323001 its reverse (10032312031), we get a palindrome (23053635032).

The spelling of 13021323001 in words is "thirteen billion, twenty-one million, three hundred twenty-three thousand, one".