11150381 has 4 divisors (see below), whose sum is σ = 12164064. Its totient is φ = 10136700.

The previous prime is 11150371. The next prime is 11150393. The reversal of 11150381 is 18305111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18305111 = 11 ⋅1664101.

It is a cyclic number.

It is not a de Polignac number, because 11150381 - 2¹⁰ = 11149357 is a prime.

It is a super-2 number, since 2×11150381² = 248661992890322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11150311) 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, 506825 + ... + 506846.

It is an arithmetic number, because the mean of its divisors is an integer number (3041016).

Almost surely, 2^11150381 is an apocalyptic number.

11150381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11150381 is a deficient number, since it is larger than the sum of its proper divisors (1013683).

11150381 is a wasteful number, since it uses less digits than its factorization.

11150381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013682.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 11150381 is about 3339.2186211747. The cubic root of 11150381 is about 223.4068931718.

Adding to 11150381 its reverse (18305111), we get a palindrome (29455492).

The spelling of 11150381 in words is "eleven million, one hundred fifty thousand, three hundred eighty-one".