20623610323 has 2 divisors, whose sum is σ = 20623610324. Its totient is φ = 20623610322.

The previous prime is 20623610309. The next prime is 20623610369. The reversal of 20623610323 is 32301632602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20623610323 - 2¹⁷ = 20623479251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20623610291 and 20623610300.

It is not a weakly prime, because it can be changed into another prime (20623610383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311805161 + 10311805162.

It is an arithmetic number, because the mean of its divisors is an integer number (10311805162).

Almost surely, 2^20623610323 is an apocalyptic number.

20623610323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20623610323 is an equidigital number, since it uses as much as digits as its factorization.

20623610323 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 20623610323 in words is "twenty billion, six hundred twenty-three million, six hundred ten thousand, three hundred twenty-three".