15623310023 has 2 divisors, whose sum is σ = 15623310024. Its totient is φ = 15623310022.

The previous prime is 15623310019. The next prime is 15623310047. The reversal of 15623310023 is 32001332651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15623310023 - 2² = 15623310019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 15623309974 and 15623310001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15623310623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7811655011 + 7811655012.

It is an arithmetic number, because the mean of its divisors is an integer number (7811655012).

Almost surely, 2^15623310023 is an apocalyptic number.

15623310023 is a deficient number, since it is larger than the sum of its proper divisors (1).

15623310023 is an equidigital number, since it uses as much as digits as its factorization.

15623310023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 15623310023 its reverse (32001332651), we get a palindrome (47624642674).

The spelling of 15623310023 in words is "fifteen billion, six hundred twenty-three million, three hundred ten thousand, twenty-three".