20042362903 has 2 divisors, whose sum is σ = 20042362904. Its totient is φ = 20042362902.

The previous prime is 20042362897. The next prime is 20042362913. The reversal of 20042362903 is 30926324002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20042362903 - 2⁹ = 20042362391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042362913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021181451 + 10021181452.

It is an arithmetic number, because the mean of its divisors is an integer number (10021181452).

Almost surely, 2^20042362903 is an apocalyptic number.

20042362903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042362903 is an equidigital number, since it uses as much as digits as its factorization.

20042362903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 20042362903 its reverse (30926324002), we get a palindrome (50968686905).

The spelling of 20042362903 in words is "twenty billion, forty-two million, three hundred sixty-two thousand, nine hundred three".