11381078 has 4 divisors (see below), whose sum is σ = 17071620. Its totient is φ = 5690538.

The previous prime is 11381077. The next prime is 11381081. The reversal of 11381078 is 87018311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87018311 = 2531 ⋅34381.

It is a self number, because there is not a number n which added to its sum of digits gives 11381078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381077) 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 as a sum of consecutive naturals, namely, 2845268 + ... + 2845271.

It is an arithmetic number, because the mean of its divisors is an integer number (4267905).

Almost surely, 2^11381078 is an apocalyptic number.

11381078 is a deficient number, since it is larger than the sum of its proper divisors (5690542).

11381078 is an equidigital number, since it uses as much as digits as its factorization.

11381078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690541.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 11381078 is about 3373.5853331434. The cubic root of 11381078 is about 224.9371215243.

Adding to 11381078 its reverse (87018311), we get a palindrome (98399389).

The spelling of 11381078 in words is "eleven million, three hundred eighty-one thousand, seventy-eight".