13212133123 has 16 divisors (see below), whose sum is σ = 15514006464. Its totient is φ = 11014116480.

The previous prime is 13212133097. The next prime is 13212133127. The reversal of 13212133123 is 32133121231.

It is a cyclic number.

It is not a de Polignac number, because 13212133123 - 2⁵ = 13212133091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212133094 and 13212133103.

It is not an unprimeable number, because it can be changed into a prime (13212133127) 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 15 ways as a sum of consecutive naturals, for example, 725793 + ... + 743773.

It is an arithmetic number, because the mean of its divisors is an integer number (969625404).

Almost surely, 2^13212133123 is an apocalyptic number.

13212133123 is a deficient number, since it is larger than the sum of its proper divisors (2301873341).

13212133123 is a wasteful number, since it uses less digits than its factorization.

13212133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20862.

The product of its digits is 648, while the sum is 22.

Adding to 13212133123 its reverse (32133121231), we get a palindrome (45345254354).

The spelling of 13212133123 in words is "thirteen billion, two hundred twelve million, one hundred thirty-three thousand, one hundred twenty-three".