20001022111003 has 2 divisors, whose sum is σ = 20001022111004. Its totient is φ = 20001022111002.

The previous prime is 20001022110961. The next prime is 20001022111043. The reversal of 20001022111003 is 30011122010002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001022111003 - 2³⁷ = 19863583157531 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001022111043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000511055501 + 10000511055502.

It is an arithmetic number, because the mean of its divisors is an integer number (10000511055502).

Almost surely, 2^{20001022111003} is an apocalyptic number.

20001022111003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001022111003 is an equidigital number, since it uses as much as digits as its factorization.

20001022111003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20001022111003 its reverse (30011122010002), we get a palindrome (50012144121005).

The spelling of 20001022111003 in words is "twenty trillion, one billion, twenty-two million, one hundred eleven thousand, three".