13020311123 has 8 divisors (see below), whose sum is σ = 13041745920. Its totient is φ = 12998896200.

The previous prime is 13020311113. The next prime is 13020311149. The reversal of 13020311123 is 32111302031.

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

It is a cyclic number.

It is not a de Polignac number, because 13020311123 - 2²⁰ = 13019262547 is a prime.

It is a super-2 number, since 2×13020311123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020311113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1800008 + ... + 1807226.

It is an arithmetic number, because the mean of its divisors is an integer number (1630218240).

Almost surely, 2^13020311123 is an apocalyptic number.

13020311123 is a deficient number, since it is larger than the sum of its proper divisors (21434797).

13020311123 is a wasteful number, since it uses less digits than its factorization.

13020311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13020311123 its reverse (32111302031), we get a palindrome (45131613154).

The spelling of 13020311123 in words is "thirteen billion, twenty million, three hundred eleven thousand, one hundred twenty-three".