11630811 has 4 divisors (see below), whose sum is σ = 15507752. Its totient is φ = 7753872.

The previous prime is 11630803. The next prime is 11630821. The reversal of 11630811 is 11803611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11803611 = 3 ⋅3934537.

It is not a de Polignac number, because 11630811 - 2³ = 11630803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11630821) 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, 1938466 + ... + 1938471.

It is an arithmetic number, because the mean of its divisors is an integer number (3876938).

Almost surely, 2^11630811 is an apocalyptic number.

11630811 is a deficient number, since it is larger than the sum of its proper divisors (3876941).

11630811 is an equidigital number, since it uses as much as digits as its factorization.

11630811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876940.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 11630811 is about 3410.3974841652. The cubic root of 11630811 is about 226.5704842307.

The spelling of 11630811 in words is "eleven million, six hundred thirty thousand, eight hundred eleven".