23123232311023 has 4 divisors (see below), whose sum is σ = 24901942488808. Its totient is φ = 21344522133240.

The previous prime is 23123232311017. The next prime is 23123232311027. The reversal of 23123232311023 is 32011323232132.

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-23123232311023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23123232310982 and 23123232311000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123232311027) 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, 889355088873 + ... + 889355088898.

It is an arithmetic number, because the mean of its divisors is an integer number (6225485622202).

Almost surely, 2^{23123232311023} is an apocalyptic number.

23123232311023 is a deficient number, since it is larger than the sum of its proper divisors (1778710177785).

23123232311023 is a wasteful number, since it uses less digits than its factorization.

23123232311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778710177784.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 23123232311023 its reverse (32011323232132), we get a palindrome (55134555543155).

The spelling of 23123232311023 in words is "twenty-three trillion, one hundred twenty-three billion, two hundred thirty-two million, three hundred eleven thousand, twenty-three".