23112003 has 16 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 15060864.

The previous prime is 23111983. The next prime is 23112007. The reversal of 23112003 is 30021132.

It is a happy number.

It is not a de Polignac number, because 23112003 - 2⁸ = 23111747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23112003.

It is not an unprimeable number, because it can be changed into a prime (23112007) 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, 26350 + ... + 27212.

It is an arithmetic number, because the mean of its divisors is an integer number (1969920).

Almost surely, 2^23112003 is an apocalyptic number.

23112003 is a deficient number, since it is larger than the sum of its proper divisors (8406717).

23112003 is a wasteful number, since it uses less digits than its factorization.

23112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23112003 is about 4807.4944617753. The cubic root of 23112003 is about 284.8475762361.

Adding to 23112003 its reverse (30021132), we get a palindrome (53133135).

The spelling of 23112003 in words is "twenty-three million, one hundred twelve thousand, three".