10023400123 has 32 divisors (see below), whose sum is σ = 11502512640. Its totient is φ = 8650333440.

The previous prime is 10023400111. The next prime is 10023400133. The reversal of 10023400123 is 32100432001.

It is a happy number.

It is not a de Polignac number, because 10023400123 - 2¹⁷ = 10023269051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10023400097 and 10023400106.

It is not an unprimeable number, because it can be changed into a prime (10023400133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12178690 + ... + 12179512.

It is an arithmetic number, because the mean of its divisors is an integer number (359453520).

Almost surely, 2^10023400123 is an apocalyptic number.

10023400123 is a deficient number, since it is larger than the sum of its proper divisors (1479112517).

10023400123 is a wasteful number, since it uses less digits than its factorization.

10023400123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10023400123 its reverse (32100432001), we get a palindrome (42123832124).

The spelling of 10023400123 in words is "ten billion, twenty-three million, four hundred thousand, one hundred twenty-three".