1111061056 has 56 divisors (see below), whose sum is σ = 2551704320. Its totient is φ = 470126592.

The previous prime is 1111061033. The next prime is 1111061057. The reversal of 1111061056 is 6501601111.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (1111061057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19696 + ... + 51088.

Almost surely, 2^1111061056 is an apocalyptic number.

1111061056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111061056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275852160).

1111061056 is an abundant number, since it is smaller than the sum of its proper divisors (1440643264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111061056 is an equidigital number, since it uses as much as digits as its factorization.

1111061056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31491 (or 31481 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 1111061056 is about 33332.5824982104. The cubic root of 1111061056 is about 1035.7286151309.

Adding to 1111061056 its reverse (6501601111), we get a palindrome (7612662167).

The spelling of 1111061056 in words is "one billion, one hundred eleven million, sixty-one thousand, fifty-six".