20231123 has 8 divisors (see below), whose sum is σ = 22104576. Its totient is φ = 18363400.

The previous prime is 20231093. The next prime is 20231129. The reversal of 20231123 is 32113202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20231123 - 2¹⁰ = 20230099 is a prime.

It is a super-2 number, since 2×20231123² = 818596675682258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20231098 and 20231107.

It is not an unprimeable number, because it can be changed into a prime (20231129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9878 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (2763072).

Almost surely, 2^20231123 is an apocalyptic number.

20231123 is a deficient number, since it is larger than the sum of its proper divisors (1873453).

20231123 is a wasteful number, since it uses less digits than its factorization.

20231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865.

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

The square root of 20231123 is about 4497.9020665195. The cubic root of 20231123 is about 272.4833668270.

Adding to 20231123 its reverse (32113202), we get a palindrome (52344325).

The spelling of 20231123 in words is "twenty million, two hundred thirty-one thousand, one hundred twenty-three".