1111001120 has 48 divisors (see below), whose sum is σ = 2629065600. Its totient is φ = 443668224.

The previous prime is 1111001053. The next prime is 1111001141. The reversal of 1111001120 is 211001111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 1111001098 and 1111001107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97481 + ... + 108279.

It is an arithmetic number, because the mean of its divisors is an integer number (54772200).

Almost surely, 2^1111001120 is an apocalyptic number.

1111001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111001120 is an abundant number, since it is smaller than the sum of its proper divisors (1518064480).

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

1111001120 is a wasteful number, since it uses less digits than its factorization.

1111001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457 (or 11449 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1111001120 is about 33331.6834258337. The cubic root of 1111001120 is about 1035.7099907279.

Adding to 1111001120 its reverse (211001111), we get a palindrome (1322002231).

Subtracting from 1111001120 its reverse (211001111), we obtain a palindrome (900000009).

The spelling of 1111001120 in words is "one billion, one hundred eleven million, one thousand, one hundred twenty".