23123220023 has 2 divisors, whose sum is σ = 23123220024. Its totient is φ = 23123220022.

The previous prime is 23123220019. The next prime is 23123220053. The reversal of 23123220023 is 32002232132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23123220023 - 2² = 23123220019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 23123219977 and 23123220004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23123220053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561610011 + 11561610012.

It is an arithmetic number, because the mean of its divisors is an integer number (11561610012).

Almost surely, 2^23123220023 is an apocalyptic number.

23123220023 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123220023 is an equidigital number, since it uses as much as digits as its factorization.

23123220023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23123220023 its reverse (32002232132), we get a palindrome (55125452155).

The spelling of 23123220023 in words is "twenty-three billion, one hundred twenty-three million, two hundred twenty thousand, twenty-three".