111101100997 has 2 divisors, whose sum is σ = 111101100998. Its totient is φ = 111101100996.

The previous prime is 111101100947. The next prime is 111101101009. The reversal of 111101100997 is 799001101111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71780590561 + 39320510436 = 267919^2 + 198294^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101100997 - 2¹⁹ = 111100576709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101100907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550550498 + 55550550499.

It is an arithmetic number, because the mean of its divisors is an integer number (55550550499).

Almost surely, 2^111101100997 is an apocalyptic number.

It is an amenable number.

111101100997 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101100997 is an equidigital number, since it uses as much as digits as its factorization.

111101100997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 31.

The spelling of 111101100997 in words is "one hundred eleven billion, one hundred one million, one hundred thousand, nine hundred ninety-seven".