1111232442440 has 128 divisors (see below), whose sum is σ = 2542596013440. Its totient is φ = 437026738176.

The previous prime is 1111232442371. The next prime is 1111232442469. The reversal of 1111232442440 is 442442321111.

It is a super-2 number, since 2×1111232442440² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 809345594 + ... + 809346966.

It is an arithmetic number, because the mean of its divisors is an integer number (19864031355).

Almost surely, 2^{1111232442440} is an apocalyptic number.

1111232442440 is a gapful number since it is divisible by the number (10) 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 1111232442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271298006720).

1111232442440 is an abundant number, since it is smaller than the sum of its proper divisors (1431363571000).

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

1111232442440 is a wasteful number, since it uses less digits than its factorization.

1111232442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463 (or 2459 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1111232442440 its reverse (442442321111), we get a palindrome (1553674763551).

The spelling of 1111232442440 in words is "one trillion, one hundred eleven billion, two hundred thirty-two million, four hundred forty-two thousand, four hundred forty".