1081077111 has 14 divisors (see below), whose sum is σ = 1620875280. Its totient is φ = 720717588.

The previous prime is 1081077089. The next prime is 1081077113. The reversal of 1081077111 is 1117701801.

It is a happy number.

It is not a de Polignac number, because 1081077111 - 2⁵ = 1081077079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081077113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 740751 + ... + 742208.

Almost surely, 2^1081077111 is an apocalyptic number.

1081077111 is a deficient number, since it is larger than the sum of its proper divisors (539798169).

1081077111 is an frugal number, since it uses more digits than its factorization.

1081077111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482977 (or 1482962 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 27.

The square root of 1081077111 is about 32879.7370883649. The cubic root of 1081077111 is about 1026.3265350317.

Adding to 1081077111 its reverse (1117701801), we get a palindrome (2198778912).

The spelling of 1081077111 in words is "one billion, eighty-one million, seventy-seven thousand, one hundred eleven".