11123917 has 8 divisors (see below), whose sum is σ = 12754112. Its totient is φ = 9504000.

The previous prime is 11123887. The next prime is 11123923. The reversal of 11123917 is 71932111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11123891 and 11123900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (1594264).

Almost surely, 2^11123917 is an apocalyptic number.

It is an amenable number.

11123917 is a deficient number, since it is larger than the sum of its proper divisors (1630195).

11123917 is an equidigital number, since it uses as much as digits as its factorization.

11123917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139.

The product of its digits is 378, while the sum is 25.

The square root of 11123917 is about 3335.2536635165. The cubic root of 11123917 is about 223.2300106206.

The spelling of 11123917 in words is "eleven million, one hundred twenty-three thousand, nine hundred seventeen".