101010200121091 has 2 divisors, whose sum is σ = 101010200121092. Its totient is φ = 101010200121090.

The previous prime is 101010200121007. The next prime is 101010200121139. The reversal of 101010200121091 is 190121002010101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101010200121091 - 2³⁵ = 100975840382723 is a prime.

It is not a weakly prime, because it can be changed into another prime (101010200121491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505100060545 + 50505100060546.

It is an arithmetic number, because the mean of its divisors is an integer number (50505100060546).

Almost surely, 2^{101010200121091} is an apocalyptic number.

101010200121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010200121091 is an equidigital number, since it uses as much as digits as its factorization.

101010200121091 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 101010200121091 its reverse (190121002010101), we get a palindrome (291131202131192).

The spelling of 101010200121091 in words is "one hundred one trillion, ten billion, two hundred million, one hundred twenty-one thousand, ninety-one".