13001321003 has 4 divisors (see below), whose sum is σ = 14183259288. Its totient is φ = 11819382720.

The previous prime is 13001320999. The next prime is 13001321023. The reversal of 13001321003 is 30012310031.

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

It is a cyclic number.

It is not a de Polignac number, because 13001321003 - 2² = 13001320999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13001321023) 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, 590969126 + ... + 590969147.

It is an arithmetic number, because the mean of its divisors is an integer number (3545814822).

Almost surely, 2^13001321003 is an apocalyptic number.

13001321003 is a deficient number, since it is larger than the sum of its proper divisors (1181938285).

13001321003 is a wasteful number, since it uses less digits than its factorization.

13001321003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181938284.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13001321003 its reverse (30012310031), we get a palindrome (43013631034).

The spelling of 13001321003 in words is "thirteen billion, one million, three hundred twenty-one thousand, three".