11131963 has 4 divisors (see below), whose sum is σ = 11143888. Its totient is φ = 11120040.

The previous prime is 11131927. The next prime is 11131979. The reversal of 11131963 is 36913111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36913111 = 149 ⋅247739.

It is a cyclic number.

It is not a de Polignac number, because 11131963 - 2¹³ = 11123771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131063) 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, 4431 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (2785972).

Almost surely, 2^11131963 is an apocalyptic number.

11131963 is a deficient number, since it is larger than the sum of its proper divisors (11925).

11131963 is a wasteful number, since it uses less digits than its factorization.

11131963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11924.

The product of its digits is 486, while the sum is 25.

The square root of 11131963 is about 3336.4596505877. The cubic root of 11131963 is about 223.2838188788.

The spelling of 11131963 in words is "eleven million, one hundred thirty-one thousand, nine hundred sixty-three".