1120242541021 has 4 divisors (see below), whose sum is σ = 1150519366492. Its totient is φ = 1089965715552.

The previous prime is 1120242540971. The next prime is 1120242541063. The reversal of 1120242541021 is 1201452420211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1043768722500 + 76473818521 = 1021650^2 + 276539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120242541021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120242542021) 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, 15138412680 + ... + 15138412753.

It is an arithmetic number, because the mean of its divisors is an integer number (287629841623).

Almost surely, 2^{1120242541021} is an apocalyptic number.

It is an amenable number.

1120242541021 is a deficient number, since it is larger than the sum of its proper divisors (30276825471).

1120242541021 is an equidigital number, since it uses as much as digits as its factorization.

1120242541021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30276825470.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 1120242541021 its reverse (1201452420211), we get a palindrome (2321694961232).

The spelling of 1120242541021 in words is "one trillion, one hundred twenty billion, two hundred forty-two million, five hundred forty-one thousand, twenty-one".