23020002123 has 8 divisors (see below), whose sum is σ = 30695297088. Its totient is φ = 15345687624.

The previous prime is 23020002091. The next prime is 23020002167. The reversal of 23020002123 is 32120002032.

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

It is not a de Polignac number, because 23020002123 - 2⁵ = 23020002091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23020002023) 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, 188461 + ... + 285582.

It is an arithmetic number, because the mean of its divisors is an integer number (3836912136).

Almost surely, 2^23020002123 is an apocalyptic number.

23020002123 is a deficient number, since it is larger than the sum of its proper divisors (7675294965).

23020002123 is a wasteful number, since it uses less digits than its factorization.

23020002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490233.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23020002123 its reverse (32120002032), we get a palindrome (55140004155).

Subtracting 23020002123 from its reverse (32120002032), we obtain a palindrome (9099999909).

The spelling of 23020002123 in words is "twenty-three billion, twenty million, two thousand, one hundred twenty-three".