100023200123 has 16 divisors (see below), whose sum is σ = 127057165056. Its totient is φ = 76469583840.

The previous prime is 100023200117. The next prime is 100023200153. The reversal of 100023200123 is 321002320001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100023200123 - 2⁸ = 100023199867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100023200098 and 100023200107.

It is not an unprimeable number, because it can be changed into a prime (100023200153) 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, 12250661 + ... + 12258822.

It is an arithmetic number, because the mean of its divisors is an integer number (7941072816).

Almost surely, 2^100023200123 is an apocalyptic number.

100023200123 is a deficient number, since it is larger than the sum of its proper divisors (27033964933).

100023200123 is a wasteful number, since it uses less digits than its factorization.

100023200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24509554.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 100023200123 its reverse (321002320001), we get a palindrome (421025520124).

The spelling of 100023200123 in words is "one hundred billion, twenty-three million, two hundred thousand, one hundred twenty-three".