23102123 has 4 divisors (see below), whose sum is σ = 25202328. Its totient is φ = 21001920.

The previous prime is 23102113. The next prime is 23102129. The reversal of 23102123 is 32120132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23102123 is a prime.

It is a super-3 number, since 3×23102123³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23102098 and 23102107.

It is not an unprimeable number, because it can be changed into a prime (23102129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050086 + ... + 1050107.

It is an arithmetic number, because the mean of its divisors is an integer number (6300582).

Almost surely, 2^23102123 is an apocalyptic number.

23102123 is a deficient number, since it is larger than the sum of its proper divisors (2100205).

23102123 is a wasteful number, since it uses less digits than its factorization.

23102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100204.

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

The square root of 23102123 is about 4806.4667896491. The cubic root of 23102123 is about 284.8069812377.

Adding to 23102123 its reverse (32120132), we get a palindrome (55222255).

Subtracting 23102123 from its reverse (32120132), we obtain a square (9018009 = 3003²).

The spelling of 23102123 in words is "twenty-three million, one hundred two thousand, one hundred twenty-three".