1111012121987 has 8 divisors (see below), whose sum is σ = 1186277858304. Its totient is φ = 1037993124168.

The previous prime is 1111012121957. The next prime is 1111012121993. The reversal of 1111012121987 is 7891212101111.

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 1111012121987 - 2¹⁰ = 1111012120963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111012121957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561683603 + ... + 561685580.

It is an arithmetic number, because the mean of its divisors is an integer number (148284732288).

Almost surely, 2^{1111012121987} is an apocalyptic number.

1111012121987 is a deficient number, since it is larger than the sum of its proper divisors (75265736317).

1111012121987 is a wasteful number, since it uses less digits than its factorization.

1111012121987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123369249.

The product of its (nonzero) digits is 2016, while the sum is 35.

The spelling of 1111012121987 in words is "one trillion, one hundred eleven billion, twelve million, one hundred twenty-one thousand, nine hundred eighty-seven".