12100101123 has 16 divisors (see below), whose sum is σ = 17822937600. Its totient is φ = 7240565280.

The previous prime is 12100101077. The next prime is 12100101127. The reversal of 12100101123 is 32110100121.

It is not a de Polignac number, because 12100101123 - 2⁸ = 12100100867 is a prime.

It is a super-2 number, since 2×12100101123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100101099 and 12100101108.

It is not an unprimeable number, because it can be changed into a prime (12100101127) 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, 2318088 + ... + 2323301.

It is an arithmetic number, because the mean of its divisors is an integer number (1113933600).

Almost surely, 2^12100101123 is an apocalyptic number.

12100101123 is a deficient number, since it is larger than the sum of its proper divisors (5722836477).

12100101123 is a wasteful number, since it uses less digits than its factorization.

12100101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641482.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12100101123 its reverse (32110100121), we get a palindrome (44210201244).

The spelling of 12100101123 in words is "twelve billion, one hundred million, one hundred one thousand, one hundred twenty-three".