11385381 has 16 divisors (see below), whose sum is σ = 17819264. Its totient is φ = 6329664.

The previous prime is 11385379. The next prime is 11385383. The reversal of 11385381 is 18358311.

11385381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11385379) and next prime (11385383).

It is not a de Polignac number, because 11385381 - 2¹ = 11385379 is a prime.

It is a super-2 number, since 2×11385381² = 259253801030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11385383) 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 15 ways as a sum of consecutive naturals, for example, 6550 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (1113704).

Almost surely, 2^11385381 is an apocalyptic number.

It is an amenable number.

11385381 is a deficient number, since it is larger than the sum of its proper divisors (6433883).

11385381 is a wasteful number, since it uses less digits than its factorization.

11385381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14700.

The product of its digits is 2880, while the sum is 30.

The square root of 11385381 is about 3374.2230216748. The cubic root of 11385381 is about 224.9654663049.

The spelling of 11385381 in words is "eleven million, three hundred eighty-five thousand, three hundred eighty-one".