20230123 has 4 divisors (see below), whose sum is σ = 20249568. Its totient is φ = 20210680.

The previous prime is 20230121. The next prime is 20230151. The reversal of 20230123 is 32103202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20230123 - 2¹ = 20230121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230121) 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, 8068 + ... + 10273.

It is an arithmetic number, because the mean of its divisors is an integer number (5062392).

Almost surely, 2^20230123 is an apocalyptic number.

20230123 is a deficient number, since it is larger than the sum of its proper divisors (19445).

20230123 is a wasteful number, since it uses less digits than its factorization.

20230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19444.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20230123 is about 4497.7909022097. The cubic root of 20230123 is about 272.4788772450.

Adding to 20230123 its reverse (32103202), we get a palindrome (52333325).

The spelling of 20230123 in words is "twenty million, two hundred thirty thousand, one hundred twenty-three".