23201123 has 16 divisors (see below), whose sum is σ = 26138112. Its totient is φ = 20412000.

The previous prime is 23201119. The next prime is 23201137. The reversal of 23201123 is 32110232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23201123 - 2² = 23201119 is a prime.

It is a super-2 number, since 2×23201123² = 1076584216922258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23201098 and 23201107.

It is not an unprimeable number, because it can be changed into a prime (23201153) 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, 85478 + ... + 85748.

It is an arithmetic number, because the mean of its divisors is an integer number (1633632).

Almost surely, 2^23201123 is an apocalyptic number.

23201123 is a deficient number, since it is larger than the sum of its proper divisors (2936989).

23201123 is a wasteful number, since it uses less digits than its factorization.

23201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23201123 is about 4816.7544051986. The cubic root of 23201123 is about 285.2132312119.

Adding to 23201123 its reverse (32110232), we get a palindrome (55311355).

It can be divided in two parts, 2320 and 1123, that added together give a palindrome (3443).

The spelling of 23201123 in words is "twenty-three million, two hundred one thousand, one hundred twenty-three".