100201012091 has 2 divisors, whose sum is σ = 100201012092. Its totient is φ = 100201012090.

The previous prime is 100201012061. The next prime is 100201012147. The reversal of 100201012091 is 190210102001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100201012091 - 2⁶ = 100201012027 is a prime.

It is not a weakly prime, because it can be changed into another prime (100201012061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100506045 + 50100506046.

It is an arithmetic number, because the mean of its divisors is an integer number (50100506046).

Almost surely, 2^100201012091 is an apocalyptic number.

100201012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201012091 is an equidigital number, since it uses as much as digits as its factorization.

100201012091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 100201012091 its reverse (190210102001), we get a palindrome (290411114092).

It can be divided in two parts, 1002010 and 12091, that added together give a palindrome (1014101).

The spelling of 100201012091 in words is "one hundred billion, two hundred one million, twelve thousand, ninety-one".