11381983 has 2 divisors, whose sum is σ = 11381984. Its totient is φ = 11381982.

The previous prime is 11381963. The next prime is 11381989. The reversal of 11381983 is 38918311.

It is a happy number.

11381983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11381983 - 2⁹ = 11381471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11381989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5690991 + 5690992.

It is an arithmetic number, because the mean of its divisors is an integer number (5690992).

Almost surely, 2^11381983 is an apocalyptic number.

11381983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11381983 is an equidigital number, since it uses as much as digits as its factorization.

11381983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 11381983 is about 3373.7194607732. The cubic root of 11381983 is about 224.9430835459.

The spelling of 11381983 in words is "eleven million, three hundred eighty-one thousand, nine hundred eighty-three".