11381051 has 8 divisors (see below), whose sum is σ = 12441600. Its totient is φ = 10324840.

The previous prime is 11381039. The next prime is 11381059. The reversal of 11381051 is 15018311.

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

It is a de Polignac number, because none of the positive numbers 2^k-11381051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11381059) 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, 7190 + ... + 8628.

It is an arithmetic number, because the mean of its divisors is an integer number (1555200).

Almost surely, 2^11381051 is an apocalyptic number.

11381051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11381051 is a deficient number, since it is larger than the sum of its proper divisors (1060549).

11381051 is a wasteful number, since it uses less digits than its factorization.

11381051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169.

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

The square root of 11381051 is about 3373.5813314636. The cubic root of 11381051 is about 224.9369436470.

Adding to 11381051 its reverse (15018311), we get a palindrome (26399362).

The spelling of 11381051 in words is "eleven million, three hundred eighty-one thousand, fifty-one".