20085244903 has 2 divisors, whose sum is σ = 20085244904. Its totient is φ = 20085244902.

The previous prime is 20085244889. The next prime is 20085244969. The reversal of 20085244903 is 30944258002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20085244903 - 2⁵ = 20085244871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20085844903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10042622451 + 10042622452.

It is an arithmetic number, because the mean of its divisors is an integer number (10042622452).

Almost surely, 2^20085244903 is an apocalyptic number.

20085244903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20085244903 is an equidigital number, since it uses as much as digits as its factorization.

20085244903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 20085244903 in words is "twenty billion, eighty-five million, two hundred forty-four thousand, nine hundred three".