11781063 has 24 divisors (see below), whose sum is σ = 19926816. Its totient is φ = 6566400.

The previous prime is 11781043. The next prime is 11781089. The reversal of 11781063 is 36018711.

It is not a de Polignac number, because 11781063 - 2¹⁰ = 11780039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11781013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303 + ... + 4863.

It is an arithmetic number, because the mean of its divisors is an integer number (830284).

Almost surely, 2^11781063 is an apocalyptic number.

11781063 is a deficient number, since it is larger than the sum of its proper divisors (8145753).

11781063 is a wasteful number, since it uses less digits than its factorization.

11781063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615 (or 4612 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11781063 is about 3432.3553137751. The cubic root of 11781063 is about 227.5419590120.

Adding to 11781063 its reverse (36018711), we get a palindrome (47799774).

The spelling of 11781063 in words is "eleven million, seven hundred eighty-one thousand, sixty-three".