23043121013 has 16 divisors (see below), whose sum is σ = 25488292032. Its totient is φ = 20658000000.

The previous prime is 23043121009. The next prime is 23043121027. The reversal of 23043121013 is 31012134032.

It is not a de Polignac number, because 23043121013 - 2² = 23043121009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043121033) 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, 237545 + ... + 320177.

It is an arithmetic number, because the mean of its divisors is an integer number (1593018252).

Almost surely, 2^23043121013 is an apocalyptic number.

It is an amenable number.

23043121013 is a deficient number, since it is larger than the sum of its proper divisors (2445171019).

23043121013 is a wasteful number, since it uses less digits than its factorization.

23043121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82996.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23043121013 its reverse (31012134032), we get a palindrome (54055255045).

The spelling of 23043121013 in words is "twenty-three billion, forty-three million, one hundred twenty-one thousand, thirteen".