11381351 has 4 divisors (see below), whose sum is σ = 11430432. Its totient is φ = 11332272.

The previous prime is 11381329. The next prime is 11381353. The reversal of 11381351 is 15318311.

11381351 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11381351 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 (11381353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24191 + ... + 24656.

It is an arithmetic number, because the mean of its divisors is an integer number (2857608).

Almost surely, 2^11381351 is an apocalyptic number.

11381351 is a deficient number, since it is larger than the sum of its proper divisors (49081).

11381351 is an equidigital number, since it uses as much as digits as its factorization.

11381351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49080.

The product of its digits is 360, while the sum is 23.

The square root of 11381351 is about 3373.6257943050. The cubic root of 11381351 is about 224.9389200459.

Adding to 11381351 its reverse (15318311), we get a palindrome (26699662).

The spelling of 11381351 in words is "eleven million, three hundred eighty-one thousand, three hundred fifty-one".