23155123 has 2 divisors, whose sum is σ = 23155124. Its totient is φ = 23155122.

The previous prime is 23155063. The next prime is 23155127. The reversal of 23155123 is 32155132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23155123 - 2⁹ = 23154611 is a prime.

It is a super-2 number, since 2×23155123² = 1072319442290258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23155094 and 23155103.

It is not a weakly prime, because it can be changed into another prime (23155127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577561 + 11577562.

It is an arithmetic number, because the mean of its divisors is an integer number (11577562).

Almost surely, 2^23155123 is an apocalyptic number.

23155123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23155123 is an equidigital number, since it uses as much as digits as its factorization.

23155123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 22.

The square root of 23155123 is about 4811.9770365204. The cubic root of 23155123 is about 285.0246126276.

Subtracting 23155123 from its reverse (32155132), we obtain a palindrome (9000009).

The spelling of 23155123 in words is "twenty-three million, one hundred fifty-five thousand, one hundred twenty-three".