12100113123 has 32 divisors (see below), whose sum is σ = 18539942400. Its totient is φ = 6876334080.

The previous prime is 12100113107. The next prime is 12100113127. The reversal of 12100113123 is 32131100121.

It is a happy number.

It is not a de Polignac number, because 12100113123 - 2⁴ = 12100113107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12100113127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3119061 + ... + 3122937.

It is an arithmetic number, because the mean of its divisors is an integer number (579373200).

Almost surely, 2^12100113123 is an apocalyptic number.

12100113123 is a deficient number, since it is larger than the sum of its proper divisors (6439829277).

12100113123 is a wasteful number, since it uses less digits than its factorization.

12100113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12100113123 its reverse (32131100121), we get a palindrome (44231213244).

The spelling of 12100113123 in words is "twelve billion, one hundred million, one hundred thirteen thousand, one hundred twenty-three".