1120742120 has 32 divisors (see below), whose sum is σ = 2608626600. Its totient is φ = 432837888.

The previous prime is 1120742089. The next prime is 1120742141. The reversal of 1120742120 is 212470211.

It can be written as a sum of positive squares in 4 ways, for example, as 909504964 + 211237156 = 30158^2 + 14534^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1120742092 and 1120742101.

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, 481919 + ... + 484238.

Almost surely, 2^1120742120 is an apocalyptic number.

1120742120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120742120 is an abundant number, since it is smaller than the sum of its proper divisors (1487884480).

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

1120742120 is a wasteful number, since it uses less digits than its factorization.

1120742120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966197 (or 966193 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1120742120 is about 33477.4867634953. The cubic root of 1120742120 is about 1038.7281419730.

The spelling of 1120742120 in words is "one billion, one hundred twenty million, seven hundred forty-two thousand, one hundred twenty".