1120565273881 has 4 divisors (see below), whose sum is σ = 1120889046564. Its totient is φ = 1120241501200.

The previous prime is 1120565273879. The next prime is 1120565273909. The reversal of 1120565273881 is 1883725650211.

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 78450968281 + 1042114305600 = 280091^2 + 1020840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120565273881 - 2¹ = 1120565273879 is a prime.

It is a super-2 number, since 2×1120565273881² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120565273801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161881150 + ... + 161888071.

It is an arithmetic number, because the mean of its divisors is an integer number (280222261641).

Almost surely, 2^{1120565273881} is an apocalyptic number.

It is an amenable number.

1120565273881 is a deficient number, since it is larger than the sum of its proper divisors (323772683).

1120565273881 is an equidigital number, since it uses as much as digits as its factorization.

1120565273881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323772682.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 1120565273881 in words is "one trillion, one hundred twenty billion, five hundred sixty-five million, two hundred seventy-three thousand, eight hundred eighty-one".