100130020091 has 2 divisors, whose sum is σ = 100130020092. Its totient is φ = 100130020090.

The previous prime is 100130020069. The next prime is 100130020187. The reversal of 100130020091 is 190020031001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100130020091 - 2⁶ = 100130020027 is a prime.

It is not a weakly prime, because it can be changed into another prime (100130020391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50065010045 + 50065010046.

It is an arithmetic number, because the mean of its divisors is an integer number (50065010046).

Almost surely, 2^100130020091 is an apocalyptic number.

100130020091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100130020091 is an equidigital number, since it uses as much as digits as its factorization.

100130020091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 100130020091 its reverse (190020031001), we get a palindrome (290150051092).

The spelling of 100130020091 in words is "one hundred billion, one hundred thirty million, twenty thousand, ninety-one".