23115403 has 2 divisors, whose sum is σ = 23115404. Its totient is φ = 23115402.

The previous prime is 23115383. The next prime is 23115409. The reversal of 23115403 is 30451132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23115403 - 2⁹ = 23114891 is a prime.

It is not a weakly prime, because it can be changed into another prime (23115409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11557701 + 11557702.

It is an arithmetic number, because the mean of its divisors is an integer number (11557702).

Almost surely, 2^23115403 is an apocalyptic number.

23115403 is a deficient number, since it is larger than the sum of its proper divisors (1).

23115403 is an equidigital number, since it uses as much as digits as its factorization.

23115403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23115403 is about 4807.8480633231. The cubic root of 23115403 is about 284.8615434990.

Adding to 23115403 its reverse (30451132), we get a palindrome (53566535).

The spelling of 23115403 in words is "twenty-three million, one hundred fifteen thousand, four hundred three".