20110020111047 has 2 divisors, whose sum is σ = 20110020111048. Its totient is φ = 20110020111046.

The previous prime is 20110020111019. The next prime is 20110020111059. The reversal of 20110020111047 is 74011102001102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20110020111047 - 2¹⁴ = 20110020094663 is a prime.

It is a super-2 number, since 2×20110020111047² (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 (20110020111947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055010055523 + 10055010055524.

It is an arithmetic number, because the mean of its divisors is an integer number (10055010055524).

Almost surely, 2^{20110020111047} is an apocalyptic number.

20110020111047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110020111047 is an equidigital number, since it uses as much as digits as its factorization.

20110020111047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 20110020111047 its reverse (74011102001102), we get a palindrome (94121122112149).

The spelling of 20110020111047 in words is "twenty trillion, one hundred ten billion, twenty million, one hundred eleven thousand, forty-seven".