12123113223100 has 36 divisors (see below), whose sum is σ = 28698715305288. Its totient is φ = 4408404808000.

The previous prime is 12123113223083. The next prime is 12123113223149. The reversal of 12123113223100 is 132231132121.

It is a super-2 number, since 2×12123113223100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5510504911 + ... + 5510507110.

It is an arithmetic number, because the mean of its divisors is an integer number (797186536258).

Almost surely, 2^{12123113223100} is an apocalyptic number.

12123113223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123113223100 is an abundant number, since it is smaller than the sum of its proper divisors (16575602082188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123113223100 is a wasteful number, since it uses less digits than its factorization.

12123113223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021012046 (or 11021012039 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12123113223100 its reverse (132231132121), we get a palindrome (12255344355221).

It can be divided in two parts, 121231 and 13223100, that added together give a palindrome (13344331).

The spelling of 12123113223100 in words is "twelve trillion, one hundred twenty-three billion, one hundred thirteen million, two hundred twenty-three thousand, one hundred".