11211112097 has 2 divisors, whose sum is σ = 11211112098. Its totient is φ = 11211112096.

The previous prime is 11211112079. The next prime is 11211112139. The reversal of 11211112097 is 79021111211.

Together with previous prime (11211112079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7068773776 + 4142338321 = 84076^2 + 64361^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211112097 - 2³² = 6916144801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211112057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605556048 + 5605556049.

It is an arithmetic number, because the mean of its divisors is an integer number (5605556049).

Almost surely, 2^11211112097 is an apocalyptic number.

It is an amenable number.

11211112097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211112097 is an equidigital number, since it uses as much as digits as its factorization.

11211112097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 11211112097 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, ninety-seven".