13321320311123 has 16 divisors (see below), whose sum is σ = 14564444745312. Its totient is φ = 12083547168000.

The previous prime is 13321320311107. The next prime is 13321320311231. The reversal of 13321320311123 is 32111302312331.

It is not a de Polignac number, because 13321320311123 - 2⁴ = 13321320311107 is a prime.

It is a super-3 number, since 3×13321320311123³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 13321320311092 and 13321320311101.

It is not an unprimeable number, because it can be changed into a prime (13321320311423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232694783 + ... + 232752023.

It is an arithmetic number, because the mean of its divisors is an integer number (910277796582).

Almost surely, 2^{13321320311123} is an apocalyptic number.

13321320311123 is a deficient number, since it is larger than the sum of its proper divisors (1243124434189).

13321320311123 is a wasteful number, since it uses less digits than its factorization.

13321320311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103606.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13321320311123 its reverse (32111302312331), we get a palindrome (45432622623454).

The spelling of 13321320311123 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty million, three hundred eleven thousand, one hundred twenty-three".