1111611040 has 48 divisors (see below), whose sum is σ = 2632277088. Its totient is φ = 443612416.

The previous prime is 1111611001. The next prime is 1111611041. The reversal of 1111611040 is 401161111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1111611041) 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, 63039 + ... + 78721.

It is an arithmetic number, because the mean of its divisors is an integer number (54839106).

Almost surely, 2^1111611040 is an apocalyptic number.

1111611040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111611040 is an abundant number, since it is smaller than the sum of its proper divisors (1520666048).

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

1111611040 is a wasteful number, since it uses less digits than its factorization.

1111611040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16141 (or 16133 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 1111611040 is about 33340.8314233464. The cubic root of 1111611040 is about 1035.8994848889.

Adding to 1111611040 its reverse (401161111), we get a palindrome (1512772151).

The spelling of 1111611040 in words is "one billion, one hundred eleven million, six hundred eleven thousand, forty".