23123243 has 16 divisors (see below), whose sum is σ = 27451872. Its totient is φ = 19200000.

The previous prime is 23123239. The next prime is 23123251. The reversal of 23123243 is 34232132.

It is a cyclic number.

It is not a de Polignac number, because 23123243 - 2² = 23123239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23123273) 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, 13643 + ... + 15243.

It is an arithmetic number, because the mean of its divisors is an integer number (1715742).

Almost surely, 2^23123243 is an apocalyptic number.

23123243 is a deficient number, since it is larger than the sum of its proper divisors (4328629).

23123243 is a wasteful number, since it uses less digits than its factorization.

23123243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726.

The product of its digits is 864, while the sum is 20.

The square root of 23123243 is about 4808.6633277866. The cubic root of 23123243 is about 284.8937451448.

Adding to 23123243 its reverse (34232132), we get a palindrome (57355375).

Subtracting 23123243 from its reverse (34232132), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2312 and 3243, that added together give a palindrome (5555).

The spelling of 23123243 in words is "twenty-three million, one hundred twenty-three thousand, two hundred forty-three".