13220002312123 has 4 divisors (see below), whose sum is σ = 13220109748368. Its totient is φ = 13219894875880.

The previous prime is 13220002312109. The next prime is 13220002312189. The reversal of 13220002312123 is 32121320002231.

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 13220002312123 - 2¹⁷ = 13220002181051 is a prime.

It is a super-2 number, since 2×13220002312123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13220002312094 and 13220002312103.

It is not an unprimeable number, because it can be changed into a prime (13220002312723) 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, 53533336 + ... + 53779717.

It is an arithmetic number, because the mean of its divisors is an integer number (3305027437092).

Almost surely, 2^{13220002312123} is an apocalyptic number.

13220002312123 is a deficient number, since it is larger than the sum of its proper divisors (107436245).

13220002312123 is a wasteful number, since it uses less digits than its factorization.

13220002312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107436244.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13220002312123 its reverse (32121320002231), we get a palindrome (45341322314354).

The spelling of 13220002312123 in words is "thirteen trillion, two hundred twenty billion, two million, three hundred twelve thousand, one hundred twenty-three".