11381119144 has 8 divisors (see below), whose sum is σ = 21339598410. Its totient is φ = 5690559568.

The previous prime is 11381119129. The next prime is 11381119147. The reversal of 11381119144 is 44191118311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7540838244 + 3840280900 = 86838^2 + 61970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11381119147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711319939 + ... + 711319954.

Almost surely, 2^11381119144 is an apocalyptic number.

It is an amenable number.

11381119144 is a deficient number, since it is larger than the sum of its proper divisors (9958479266).

11381119144 is a wasteful number, since it uses less digits than its factorization.

11381119144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422639899 (or 1422639895 counting only the distinct ones).

The product of its digits is 3456, while the sum is 34.

The spelling of 11381119144 in words is "eleven billion, three hundred eighty-one million, one hundred nineteen thousand, one hundred forty-four".