102100200012091 has 2 divisors, whose sum is σ = 102100200012092. Its totient is φ = 102100200012090.

The previous prime is 102100200012059. The next prime is 102100200012113. The reversal of 102100200012091 is 190210002001201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102100200012091 - 2⁵ = 102100200012059 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100200012491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050100006045 + 51050100006046.

It is an arithmetic number, because the mean of its divisors is an integer number (51050100006046).

Almost surely, 2^{102100200012091} is an apocalyptic number.

102100200012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100200012091 is an equidigital number, since it uses as much as digits as its factorization.

102100200012091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 102100200012091 its reverse (190210002001201), we get a palindrome (292310202013292).

The spelling of 102100200012091 in words is "one hundred two trillion, one hundred billion, two hundred million, twelve thousand, ninety-one".