20110010112091 has 2 divisors, whose sum is σ = 20110010112092. Its totient is φ = 20110010112090.

The previous prime is 20110010112077. The next prime is 20110010112139. The reversal of 20110010112091 is 19021101001102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20110010112091 - 2¹³ = 20110010103899 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110010112191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055005056045 + 10055005056046.

It is an arithmetic number, because the mean of its divisors is an integer number (10055005056046).

Almost surely, 2^{20110010112091} is an apocalyptic number.

20110010112091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110010112091 is an equidigital number, since it uses as much as digits as its factorization.

20110010112091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 20110010112091 its reverse (19021101001102), we get a palindrome (39131111113193).

The spelling of 20110010112091 in words is "twenty trillion, one hundred ten billion, ten million, one hundred twelve thousand, ninety-one".