1087118842121 has 4 divisors (see below), whose sum is σ = 1170743368452. Its totient is φ = 1003494315792.

The previous prime is 1087118842081. The next prime is 1087118842169. The reversal of 1087118842121 is 1212488117801.

1087118842121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 597202838521 + 489916003600 = 772789^2 + 699940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087118842121 - 2³⁰ = 1086045100297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087118842921) 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, 41812263146 + ... + 41812263171.

It is an arithmetic number, because the mean of its divisors is an integer number (292685842113).

Almost surely, 2^{1087118842121} is an apocalyptic number.

It is an amenable number.

1087118842121 is a deficient number, since it is larger than the sum of its proper divisors (83624526331).

1087118842121 is an equidigital number, since it uses as much as digits as its factorization.

1087118842121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83624526330.

The product of its (nonzero) digits is 57344, while the sum is 44.

The spelling of 1087118842121 in words is "one trillion, eighty-seven billion, one hundred eighteen million, eight hundred forty-two thousand, one hundred twenty-one".