11899103 has 4 divisors (see below), whose sum is σ = 12066768. Its totient is φ = 11731440.

The previous prime is 11899081. The next prime is 11899117. The reversal of 11899103 is 30199811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30199811 = 1871 ⋅16141.

It is a cyclic number.

It is not a de Polignac number, because 11899103 - 2⁸ = 11898847 is a prime.

It is a super-3 number, since 3×11899103³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11899103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899183) 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, 83726 + ... + 83867.

It is an arithmetic number, because the mean of its divisors is an integer number (3016692).

Almost surely, 2^11899103 is an apocalyptic number.

11899103 is a deficient number, since it is larger than the sum of its proper divisors (167665).

11899103 is an equidigital number, since it uses as much as digits as its factorization.

11899103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167664.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 11899103 is about 3449.5076460272. The cubic root of 11899103 is about 228.2993848451.

The spelling of 11899103 in words is "eleven million, eight hundred ninety-nine thousand, one hundred three".