11920103 has 4 divisors (see below), whose sum is σ = 12837048. Its totient is φ = 11003160.

The previous prime is 11920081. The next prime is 11920123. The reversal of 11920103 is 30102911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11920103 - 2⁸ = 11919847 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 (11920123) 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, 458453 + ... + 458478.

It is an arithmetic number, because the mean of its divisors is an integer number (3209262).

Almost surely, 2^11920103 is an apocalyptic number.

11920103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11920103 is a deficient number, since it is larger than the sum of its proper divisors (916945).

11920103 is an equidigital number, since it uses as much as digits as its factorization.

11920103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916944.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 11920103 is about 3452.5502168687. The cubic root of 11920103 is about 228.4336097936.

The spelling of 11920103 in words is "eleven million, nine hundred twenty thousand, one hundred three".