20211120112087 has 2 divisors, whose sum is σ = 20211120112088. Its totient is φ = 20211120112086.

The previous prime is 20211120112049. The next prime is 20211120112159. The reversal of 20211120112087 is 78021102111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211120112087 - 2³⁵ = 20176760373719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211120112487) 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, 10105560056043 + 10105560056044.

It is an arithmetic number, because the mean of its divisors is an integer number (10105560056044).

Almost surely, 2^{20211120112087} is an apocalyptic number.

20211120112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211120112087 is an equidigital number, since it uses as much as digits as its factorization.

20211120112087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 20211120112087 its reverse (78021102111202), we get a palindrome (98232222223289).

The spelling of 20211120112087 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, one hundred twelve thousand, eighty-seven".