1121110144 has 64 divisors (see below), whose sum is σ = 2784600000. Its totient is φ = 436792320.

The previous prime is 1121110117. The next prime is 1121110171. The reversal of 1121110144 is 4410111211.

It is an interprime number because it is at equal distance from previous prime (1121110117) and next prime (1121110171).

It is a tau number, because it is divible by the number of its divisors (64).

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

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, 47019 + ... + 66730.

It is an arithmetic number, because the mean of its divisors is an integer number (43509375).

Almost surely, 2^1121110144 is an apocalyptic number.

1121110144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121110144 is an abundant number, since it is smaller than the sum of its proper divisors (1663489856).

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

1121110144 is a wasteful number, since it uses less digits than its factorization.

1121110144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113781 (or 113769 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1121110144 is about 33482.9829017667. The cubic root of 1121110144 is about 1038.8418270760.

Adding to 1121110144 its reverse (4410111211), we get a palindrome (5531221355).

The spelling of 1121110144 in words is "one billion, one hundred twenty-one million, one hundred ten thousand, one hundred forty-four".