10204812091 has 2 divisors, whose sum is σ = 10204812092. Its totient is φ = 10204812090.

The previous prime is 10204812089. The next prime is 10204812113. The reversal of 10204812091 is 19021840201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10204812091 - 2¹ = 10204812089 is a prime.

Together with 10204812089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10204812031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102406045 + 5102406046.

It is an arithmetic number, because the mean of its divisors is an integer number (5102406046).

Almost surely, 2^10204812091 is an apocalyptic number.

10204812091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10204812091 is an equidigital number, since it uses as much as digits as its factorization.

10204812091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 10204812091 in words is "ten billion, two hundred four million, eight hundred twelve thousand, ninety-one".