1111442120 has 32 divisors (see below), whose sum is σ = 2502748800. Its totient is φ = 444220608.

The previous prime is 1111442119. The next prime is 1111442131. The reversal of 1111442120 is 212441111.

It is a super-2 number, since 2×1111442120² = 2470607172220188800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42611 + ... + 63549.

It is an arithmetic number, because the mean of its divisors is an integer number (78210900).

Almost surely, 2^1111442120 is an apocalyptic number.

1111442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111442120 is an abundant number, since it is smaller than the sum of its proper divisors (1391306680).

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

1111442120 is a wasteful number, since it uses less digits than its factorization.

1111442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22277 (or 22273 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1111442120 is about 33338.2980969335. The cubic root of 1111442120 is about 1035.8470105974.

Adding to 1111442120 its reverse (212441111), we get a palindrome (1323883231).

The spelling of 1111442120 in words is "one billion, one hundred eleven million, four hundred forty-two thousand, one hundred twenty".