11806505313 has 8 divisors (see below), whose sum is σ = 16108100448. Its totient is φ = 7687956864.

The previous prime is 11806505311. The next prime is 11806505329. The reversal of 11806505313 is 31350560811.

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

It is not a de Polignac number, because 11806505313 - 2¹ = 11806505311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11806505311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45761520 + ... + 45761777.

It is an arithmetic number, because the mean of its divisors is an integer number (2013512556).

Almost surely, 2^11806505313 is an apocalyptic number.

It is an amenable number.

11806505313 is a deficient number, since it is larger than the sum of its proper divisors (4301595135).

11806505313 is an equidigital number, since it uses as much as digits as its factorization.

11806505313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91523343.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 11806505313 in words is "eleven billion, eight hundred six million, five hundred five thousand, three hundred thirteen".