20020111003 has 2 divisors, whose sum is σ = 20020111004. Its totient is φ = 20020111002.

The previous prime is 20020110983. The next prime is 20020111019. The reversal of 20020111003 is 30011102002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020111003 - 2¹³ = 20020102811 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020111303) 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, 10010055501 + 10010055502.

It is an arithmetic number, because the mean of its divisors is an integer number (10010055502).

Almost surely, 2^20020111003 is an apocalyptic number.

20020111003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020111003 is an equidigital number, since it uses as much as digits as its factorization.

20020111003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20020111003 its reverse (30011102002), we get a palindrome (50031213005).

Subtracting 20020111003 from its reverse (30011102002), we obtain a palindrome (9990990999).

The spelling of 20020111003 in words is "twenty billion, twenty million, one hundred eleven thousand, three".