20202001103 has 2 divisors, whose sum is σ = 20202001104. Its totient is φ = 20202001102.

The previous prime is 20202001081. The next prime is 20202001109. The reversal of 20202001103 is 30110020202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202001103 is a prime.

It is a super-2 number, since 2×20202001103² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101000551 + 10101000552.

It is an arithmetic number, because the mean of its divisors is an integer number (10101000552).

Almost surely, 2^20202001103 is an apocalyptic number.

20202001103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202001103 is an equidigital number, since it uses as much as digits as its factorization.

20202001103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20202001103 its reverse (30110020202), we get a palindrome (50312021305).

The spelling of 20202001103 in words is "twenty billion, two hundred two million, one thousand, one hundred three".