11319044881 has 3 divisors (see below), whose sum is σ = 11319151273. Its totient is φ = 11318938490.

The previous prime is 11319044861. The next prime is 11319044939. The reversal of 11319044881 is 18844091311.

The square root of 11319044881 is 106391.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 11319044881 - 2⁷ = 11319044753 is a prime.

It is a super-2 number, since 2×11319044881² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11319044801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 53196 + ... + 159586.

Almost surely, 2^11319044881 is an apocalyptic number.

11319044881 is the 106391-st square number.

11319044881 is the 53196-th centered octagonal number.

It is an amenable number.

11319044881 is a deficient number, since it is larger than the sum of its proper divisors (106392).

11319044881 is an frugal number, since it uses more digits than its factorization.

11319044881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212782 (or 106391 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 11319044881 in words is "eleven billion, three hundred nineteen million, forty-four thousand, eight hundred eighty-one".