11930811 has 8 divisors (see below), whose sum is σ = 15956304. Its totient is φ = 7929600.

The previous prime is 11930801. The next prime is 11930839. The reversal of 11930811 is 11803911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11930811 - 2⁶ = 11930747 is a prime.

It is a super-2 number, since 2×11930811² = 284688502235442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11930801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (1994538).

Almost surely, 2^11930811 is an apocalyptic number.

11930811 is a deficient number, since it is larger than the sum of its proper divisors (4025493).

11930811 is a wasteful number, since it uses less digits than its factorization.

11930811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 11930811 is about 3454.1006065255. The cubic root of 11930811 is about 228.5019910544.

The spelling of 11930811 in words is "eleven million, nine hundred thirty thousand, eight hundred eleven".