20001022111043 has 2 divisors, whose sum is σ = 20001022111044. Its totient is φ = 20001022111042.

The previous prime is 20001022111003. The next prime is 20001022111051. The reversal of 20001022111043 is 34011122010002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001022111043 - 2⁸ = 20001022110787 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001022111003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000511055521 + 10000511055522.

It is an arithmetic number, because the mean of its divisors is an integer number (10000511055522).

Almost surely, 2^{20001022111043} is an apocalyptic number.

20001022111043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001022111043 is an equidigital number, since it uses as much as digits as its factorization.

20001022111043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20001022111043 its reverse (34011122010002), we get a palindrome (54012144121045).

The spelling of 20001022111043 in words is "twenty trillion, one billion, twenty-two million, one hundred eleven thousand, forty-three".