11912027903 has 4 divisors (see below), whose sum is σ = 12538976760. Its totient is φ = 11285079048.

The previous prime is 11912027899. The next prime is 11912027909. The reversal of 11912027903 is 30972021911.

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 11912027903 - 2² = 11912027899 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 (11912027909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313474400 + ... + 313474437.

It is an arithmetic number, because the mean of its divisors is an integer number (3134744190).

Almost surely, 2^11912027903 is an apocalyptic number.

11912027903 is a deficient number, since it is larger than the sum of its proper divisors (626948857).

11912027903 is an equidigital number, since it uses as much as digits as its factorization.

11912027903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626948856.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 11912027903 in words is "eleven billion, nine hundred twelve million, twenty-seven thousand, nine hundred three".