11101397 has 4 divisors (see below), whose sum is σ = 11108076. Its totient is φ = 11094720.

The previous prime is 11101393. The next prime is 11101399. The reversal of 11101397 is 79310111.

11101397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79310111 = 67 ⋅1183733.

It can be written as a sum of positive squares in 2 ways, for example, as 401956 + 10699441 = 634^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101397 - 2² = 11101393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343 + ... + 4899.

It is an arithmetic number, because the mean of its divisors is an integer number (2777019).

Almost surely, 2^11101397 is an apocalyptic number.

It is an amenable number.

11101397 is a deficient number, since it is larger than the sum of its proper divisors (6679).

11101397 is an equidigital number, since it uses as much as digits as its factorization.

11101397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 11101397 is about 3331.8758980490. The cubic root of 11101397 is about 223.0792682732.

The spelling of 11101397 in words is "eleven million, one hundred one thousand, three hundred ninety-seven".