23112403 has 2 divisors, whose sum is σ = 23112404. Its totient is φ = 23112402.

The previous prime is 23112373. The next prime is 23112407. The reversal of 23112403 is 30421132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23112403 is a prime.

It is not a weakly prime, because it can be changed into another prime (23112407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556201 + 11556202.

It is an arithmetic number, because the mean of its divisors is an integer number (11556202).

Almost surely, 2^23112403 is an apocalyptic number.

23112403 is a deficient number, since it is larger than the sum of its proper divisors (1).

23112403 is an equidigital number, since it uses as much as digits as its factorization.

23112403 is an evil number, because the sum of its binary digits is even.

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

The square root of 23112403 is about 4807.5360633073. The cubic root of 23112403 is about 284.8492195146.

Adding to 23112403 its reverse (30421132), we get a palindrome (53533535).

The spelling of 23112403 in words is "twenty-three million, one hundred twelve thousand, four hundred three".