11119280381 has 16 divisors (see below), whose sum is σ = 12213497088. Its totient is φ = 10039089600.

The previous prime is 11119280371. The next prime is 11119280383. The reversal of 11119280381 is 18308291111.

11119280381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11119280381 - 2¹⁸ = 11119018237 is a prime.

It is a super-2 number, since 2×11119280381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11119280383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2123036 + ... + 2128266.

It is an arithmetic number, because the mean of its divisors is an integer number (763343568).

Almost surely, 2^11119280381 is an apocalyptic number.

11119280381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11119280381 is a deficient number, since it is larger than the sum of its proper divisors (1094216707).

11119280381 is a wasteful number, since it uses less digits than its factorization.

11119280381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 11119280381 in words is "eleven billion, one hundred nineteen million, two hundred eighty thousand, three hundred eighty-one".