1142110120 has 16 divisors (see below), whose sum is σ = 2569747860. Its totient is φ = 456844032.

The previous prime is 1142110087. The next prime is 1142110127. The reversal of 1142110120 is 210112411.

It can be written as a sum of positive squares in 2 ways, for example, as 1031565924 + 110544196 = 32118^2 + 10514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1142110120.

It is not an unprimeable number, because it can be changed into a prime (1142110127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14276337 + ... + 14276416.

Almost surely, 2^1142110120 is an apocalyptic number.

1142110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142110120 is an abundant number, since it is smaller than the sum of its proper divisors (1427637740).

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

1142110120 is a wasteful number, since it uses less digits than its factorization.

1142110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552764 (or 28552760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1142110120 is about 33795.1197660254. The cubic root of 1142110120 is about 1045.2880687477.

Adding to 1142110120 its reverse (210112411), we get a palindrome (1352222531).

The spelling of 1142110120 in words is "one billion, one hundred forty-two million, one hundred ten thousand, one hundred twenty".