97802000111 has 2 divisors, whose sum is σ = 97802000112. Its totient is φ = 97802000110.

The previous prime is 97802000083. The next prime is 97802000113. The reversal of 97802000111 is 11100020879.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97802000111 is a prime.

It is a Sophie Germain prime.

Together with 97802000113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97802000113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48901000055 + 48901000056.

It is an arithmetic number, because the mean of its divisors is an integer number (48901000056).

Almost surely, 2^97802000111 is an apocalyptic number.

97802000111 is the 139859-th centered decagonal number.

97802000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

97802000111 is an equidigital number, since it uses as much as digits as its factorization.

97802000111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

It can be divided in two parts, 97 and 802000111, that added together give a palindrome (802000208).

The spelling of 97802000111 in words is "ninety-seven billion, eight hundred two million, one hundred eleven", and thus it is an aban number.