1142120042020 has 12 divisors (see below), whose sum is σ = 2398452088284. Its totient is φ = 456848016800.

The previous prime is 1142120042003. The next prime is 1142120042027. The reversal of 1142120042020 is 202400212411.

It can be written as a sum of positive squares in 2 ways, for example, as 603974556964 + 538145485056 = 777158^2 + 733584^2 .

It is not an unprimeable number, because it can be changed into a prime (1142120042027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28553001031 + ... + 28553001070.

It is an arithmetic number, because the mean of its divisors is an integer number (199871007357).

Almost surely, 2^{1142120042020} is an apocalyptic number.

1142120042020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142120042020 is an abundant number, since it is smaller than the sum of its proper divisors (1256332046264).

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

1142120042020 is a wasteful number, since it uses less digits than its factorization.

1142120042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57106002110 (or 57106002108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1142120042020 its reverse (202400212411), we get a palindrome (1344520254431).

The spelling of 1142120042020 in words is "one trillion, one hundred forty-two billion, one hundred twenty million, forty-two thousand, twenty".