1121340442987 has 8 divisors (see below), whose sum is σ = 1123432834176. Its totient is φ = 1119248859072.

The previous prime is 1121340442979. The next prime is 1121340443009. The reversal of 1121340442987 is 7892440431211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121340442987 - 2³ = 1121340442979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121340442927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615463 + ... + 3013855.

It is an arithmetic number, because the mean of its divisors is an integer number (140429104272).

Almost surely, 2^{1121340442987} is an apocalyptic number.

1121340442987 is a deficient number, since it is larger than the sum of its proper divisors (2092391189).

1121340442987 is an equidigital number, since it uses as much as digits as its factorization.

1121340442987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403637.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 1121340442987 in words is "one trillion, one hundred twenty-one billion, three hundred forty million, four hundred forty-two thousand, nine hundred eighty-seven".