11101993 has 8 divisors (see below), whose sum is σ = 12765312. Its totient is φ = 9458016.

The previous prime is 11101957. The next prime is 11102009. The reversal of 11101993 is 39910111.

11101993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11101993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11101903) 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, 3580 + ... + 5917.

It is an arithmetic number, because the mean of its divisors is an integer number (1595664).

Almost surely, 2^11101993 is an apocalyptic number.

It is an amenable number.

11101993 is a deficient number, since it is larger than the sum of its proper divisors (1663319).

11101993 is an equidigital number, since it uses as much as digits as its factorization.

11101993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9671.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11101993 is about 3331.9653359541. The cubic root of 11101993 is about 223.0832603493.

The spelling of 11101993 in words is "eleven million, one hundred one thousand, nine hundred ninety-three".