13001231223 has 24 divisors (see below), whose sum is σ = 18906413760. Its totient is φ = 8609126400.

The previous prime is 13001231203. The next prime is 13001231231. The reversal of 13001231223 is 32213210031.

It is not a de Polignac number, because 13001231223 - 2⁸ = 13001230967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13001231196 and 13001231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001231203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855015 + ... + 870087.

It is an arithmetic number, because the mean of its divisors is an integer number (787767240).

Almost surely, 2^13001231223 is an apocalyptic number.

13001231223 is a deficient number, since it is larger than the sum of its proper divisors (5905182537).

13001231223 is a wasteful number, since it uses less digits than its factorization.

13001231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15719 (or 15716 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13001231223 its reverse (32213210031), we get a palindrome (45214441254).

The spelling of 13001231223 in words is "thirteen billion, one million, two hundred thirty-one thousand, two hundred twenty-three".