20020011111941 has 2 divisors, whose sum is σ = 20020011111942. Its totient is φ = 20020011111940.

The previous prime is 20020011111929. The next prime is 20020011112033. The reversal of 20020011111941 is 14911111002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16932772353025 + 3087238758916 = 4114945^2 + 1757054^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020011111941 - 2²² = 20020006917637 is a prime.

It is a super-2 number, since 2×20020011111941² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020011111041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010005555970 + 10010005555971.

It is an arithmetic number, because the mean of its divisors is an integer number (10010005555971).

Almost surely, 2^{20020011111941} is an apocalyptic number.

It is an amenable number.

20020011111941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020011111941 is an equidigital number, since it uses as much as digits as its factorization.

20020011111941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 20020011111941 its reverse (14911111002002), we get a palindrome (34931122113943).

The spelling of 20020011111941 in words is "twenty trillion, twenty billion, eleven million, one hundred eleven thousand, nine hundred forty-one".