20403302923 has 2 divisors, whose sum is σ = 20403302924. Its totient is φ = 20403302922.

The previous prime is 20403302917. The next prime is 20403303043. The reversal of 20403302923 is 32920330402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20403302923 - 2²¹ = 20401205771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20403302891 and 20403302900.

It is not a weakly prime, because it can be changed into another prime (20403342923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201651461 + 10201651462.

It is an arithmetic number, because the mean of its divisors is an integer number (10201651462).

Almost surely, 2^20403302923 is an apocalyptic number.

20403302923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20403302923 is an equidigital number, since it uses as much as digits as its factorization.

20403302923 is an evil number, because the sum of its binary digits is even.

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

The spelling of 20403302923 in words is "twenty billion, four hundred three million, three hundred two thousand, nine hundred twenty-three".