11850013 has 12 divisors (see below), whose sum is σ = 13853052. Its totient is φ = 10106880.

The previous prime is 11850011. The next prime is 11850019. The reversal of 11850013 is 31005811.

11850013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10099684 + 1750329 = 3178^2 + 1323^2 .

It is not a de Polignac number, because 11850013 - 2¹ = 11850011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11850011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12123 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (1154421).

Almost surely, 2^11850013 is an apocalyptic number.

It is an amenable number.

11850013 is a deficient number, since it is larger than the sum of its proper divisors (2003039).

11850013 is an equidigital number, since it uses as much as digits as its factorization.

11850013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 11850013 is about 3442.3847838381. The cubic root of 11850013 is about 227.9850008087.

Adding to 11850013 its reverse (31005811), we get a palindrome (42855824).

The spelling of 11850013 in words is "eleven million, eight hundred fifty thousand, thirteen".