13000223121 has 8 divisors (see below), whose sum is σ = 17406157440. Its totient is φ = 8630552112.

The previous prime is 13000223083. The next prime is 13000223141. The reversal of 13000223121 is 12132200031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13000223121 - 2¹⁵ = 13000190353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13000223121.

It is not an unprimeable number, because it can be changed into a prime (13000223141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9064990 + ... + 9066423.

It is an arithmetic number, because the mean of its divisors is an integer number (2175769680).

Almost surely, 2^13000223121 is an apocalyptic number.

It is an amenable number.

13000223121 is a deficient number, since it is larger than the sum of its proper divisors (4405934319).

13000223121 is a wasteful number, since it uses less digits than its factorization.

13000223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131655.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13000223121 its reverse (12132200031), we get a palindrome (25132423152).

The spelling of 13000223121 in words is "thirteen billion, two hundred twenty-three thousand, one hundred twenty-one".