21101096927 has 2 divisors, whose sum is σ = 21101096928. Its totient is φ = 21101096926.

The previous prime is 21101096911. The next prime is 21101096963. The reversal of 21101096927 is 72969010112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21101096927 - 2⁴ = 21101096911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101096987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550548463 + 10550548464.

It is an arithmetic number, because the mean of its divisors is an integer number (10550548464).

Almost surely, 2^21101096927 is an apocalyptic number.

21101096927 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101096927 is an equidigital number, since it uses as much as digits as its factorization.

21101096927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 21101096927 in words is "twenty-one billion, one hundred one million, ninety-six thousand, nine hundred twenty-seven".