1141111081 has 16 divisors (see below), whose sum is σ = 1285542720. Its totient is φ = 1003907520.

The previous prime is 1141111051. The next prime is 1141111091. The reversal of 1141111081 is 1801111411.

It is not a de Polignac number, because 1141111081 - 2¹¹ = 1141109033 is a prime.

It is a super-3 number, since 3×1141111081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1141111021) 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 in 15 ways as a sum of consecutive naturals, for example, 40491 + ... + 62623.

It is an arithmetic number, because the mean of its divisors is an integer number (80346420).

Almost surely, 2^1141111081 is an apocalyptic number.

1141111081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1141111081 is a deficient number, since it is larger than the sum of its proper divisors (144431639).

1141111081 is a wasteful number, since it uses less digits than its factorization.

1141111081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22296.

The product of its (nonzero) digits is 32, while the sum is 19.

The square root of 1141111081 is about 33780.3357147320. The cubic root of 1141111081 is about 1044.9831979167.

Adding to 1141111081 its reverse (1801111411), we get a palindrome (2942222492).

The spelling of 1141111081 in words is "one billion, one hundred forty-one million, one hundred eleven thousand, eighty-one".