1111811364 has 18 divisors (see below), whose sum is σ = 2810412150. Its totient is φ = 370603776.

The previous prime is 1111811359. The next prime is 1111811383. The reversal of 1111811364 is 4631181111.

It can be written as a sum of positive squares in only one way, i.e., 897481764 + 214329600 = 29958^2 + 14640^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1111811364² = 2472249018239080992, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 15441789 + ... + 15441860.

Almost surely, 2^1111811364 is an apocalyptic number.

It is an amenable number.

1111811364 is an abundant number, since it is smaller than the sum of its proper divisors (1698600786).

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

1111811364 is a wasteful number, since it uses less digits than its factorization.

1111811364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30883659 (or 30883654 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 1111811364 is about 33343.8354722428. The cubic root of 1111811364 is about 1035.9617078118.

Adding to 1111811364 its reverse (4631181111), we get a palindrome (5742992475).

The spelling of 1111811364 in words is "one billion, one hundred eleven million, eight hundred eleven thousand, three hundred sixty-four".