1081111141 has 12 divisors (see below), whose sum is σ = 1252854720. Its totient is φ = 925012160.

The previous prime is 1081111127. The next prime is 1081111147. The reversal of 1081111141 is 1411111801.

It is not a de Polignac number, because 1081111141 - 2¹¹ = 1081109093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081111147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166861 + ... + 173218.

It is an arithmetic number, because the mean of its divisors is an integer number (104404560).

Almost surely, 2^1081111141 is an apocalyptic number.

1081111141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1081111141 is a deficient number, since it is larger than the sum of its proper divisors (171743579).

1081111141 is a wasteful number, since it uses less digits than its factorization.

1081111141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340124 (or 340107 counting only the distinct ones).

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

The square root of 1081111141 is about 32880.2545762651. The cubic root of 1081111141 is about 1026.3373037749.

Adding to 1081111141 its reverse (1411111801), we get a palindrome (2492222942).

It can be divided in two parts, 10811 and 11141, that added together give a cube (21952 = 28³).

The spelling of 1081111141 in words is "one billion, eighty-one million, one hundred eleven thousand, one hundred forty-one".