1121103120 has 80 divisors (see below), whose sum is σ = 3479188032. Its totient is φ = 298636800.

The previous prime is 1121103119. The next prime is 1121103143. The reversal of 1121103120 is 213011211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1121103096 and 1121103105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289195 + ... + 293045.

Almost surely, 2^1121103120 is an apocalyptic number.

1121103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121103120 is an abundant number, since it is smaller than the sum of its proper divisors (2358084912).

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

1121103120 is a wasteful number, since it uses less digits than its factorization.

1121103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080 (or 5074 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1121103120 is about 33482.8780125007. The cubic root of 1121103120 is about 1038.8396575478.

Adding to 1121103120 its reverse (213011211), we get a palindrome (1334114331).

The spelling of 1121103120 in words is "one billion, one hundred twenty-one million, one hundred three thousand, one hundred twenty".