97991010011 has 2 divisors, whose sum is σ = 97991010012. Its totient is φ = 97991010010.

The previous prime is 97991009999. The next prime is 97991010023. The reversal of 97991010011 is 11001019979.

It is a balanced prime because it is at equal distance from previous prime (97991009999) and next prime (97991010023).

It is a cyclic number.

It is not a de Polignac number, because 97991010011 - 2¹⁴ = 97990993627 is a prime.

It is not a weakly prime, because it can be changed into another prime (97991010211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48995505005 + 48995505006.

It is an arithmetic number, because the mean of its divisors is an integer number (48995505006).

Almost surely, 2^97991010011 is an apocalyptic number.

97991010011 is a deficient number, since it is larger than the sum of its proper divisors (1).

97991010011 is an equidigital number, since it uses as much as digits as its factorization.

97991010011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 38.

The spelling of 97991010011 in words is "ninety-seven billion, nine hundred ninety-one million, ten thousand, eleven".