101211100087 has 2 divisors, whose sum is σ = 101211100088. Its totient is φ = 101211100086.

The previous prime is 101211100073. The next prime is 101211100157. The reversal of 101211100087 is 780001112101.

It is a weak prime.

It is an emirp because it is prime and its reverse (780001112101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101211100087 - 2³¹ = 99063616439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211100787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605550043 + 50605550044.

It is an arithmetic number, because the mean of its divisors is an integer number (50605550044).

Almost surely, 2^101211100087 is an apocalyptic number.

101211100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211100087 is an equidigital number, since it uses as much as digits as its factorization.

101211100087 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 22.

Adding to 101211100087 its reverse (780001112101), we get a palindrome (881212212188).

The spelling of 101211100087 in words is "one hundred one billion, two hundred eleven million, one hundred thousand, eighty-seven".