111320497 has 2 divisors, whose sum is σ = 111320498. Its totient is φ = 111320496.

The previous prime is 111320491. The next prime is 111320509. The reversal of 111320497 is 794023111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109495296 + 1825201 = 10464^2 + 1351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111320497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111320491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660248 + 55660249.

It is an arithmetic number, because the mean of its divisors is an integer number (55660249).

Almost surely, 2^111320497 is an apocalyptic number.

It is an amenable number.

111320497 is a deficient number, since it is larger than the sum of its proper divisors (1).

111320497 is an equidigital number, since it uses as much as digits as its factorization.

111320497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 111320497 is about 10550.8529039126. The cubic root of 111320497 is about 481.0516539805.

The spelling of 111320497 in words is "one hundred eleven million, three hundred twenty thousand, four hundred ninety-seven".