11800913 has 2 divisors, whose sum is σ = 11800914. Its totient is φ = 11800912.

The previous prime is 11800889. The next prime is 11800931. The reversal of 11800913 is 31900811.

Together with next prime (11800931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 49729 = 3428^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 11800913 - 2¹⁰ = 11799889 is a prime.

It is not a weakly prime, because it can be changed into another prime (11800973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900456 + 5900457.

It is an arithmetic number, because the mean of its divisors is an integer number (5900457).

Almost surely, 2^11800913 is an apocalyptic number.

It is an amenable number.

11800913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11800913 is an equidigital number, since it uses as much as digits as its factorization.

11800913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11800913 is about 3435.2456971809. The cubic root of 11800913 is about 227.6696830132.

The spelling of 11800913 in words is "eleven million, eight hundred thousand, nine hundred thirteen".