11131983 has 12 divisors (see below), whose sum is σ = 16320408. Its totient is φ = 7310160.

The previous prime is 11131979. The next prime is 11131999. The reversal of 11131983 is 38913111.

It is a happy number.

It is not a de Polignac number, because 11131983 - 2² = 11131979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11135983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8628 + ... + 9833.

It is an arithmetic number, because the mean of its divisors is an integer number (1360034).

Almost surely, 2^11131983 is an apocalyptic number.

11131983 is a deficient number, since it is larger than the sum of its proper divisors (5188425).

11131983 is a wasteful number, since it uses less digits than its factorization.

11131983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18534 (or 18531 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 11131983 is about 3336.4626477753. The cubic root of 11131983 is about 223.2839525981.

The spelling of 11131983 in words is "eleven million, one hundred thirty-one thousand, nine hundred eighty-three".