1002112120987 has 8 divisors (see below), whose sum is σ = 1012001132016. Its totient is φ = 992232804192.

The previous prime is 1002112120969. The next prime is 1002112121041. The reversal of 1002112120987 is 7890212112001.

1002112120987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002112120987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002112120967) 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, 2215708 + ... + 2629369.

It is an arithmetic number, because the mean of its divisors is an integer number (126500141502).

Almost surely, 2^{1002112120987} is an apocalyptic number.

1002112120987 is a deficient number, since it is larger than the sum of its proper divisors (9889011029).

1002112120987 is a wasteful number, since it uses less digits than its factorization.

1002112120987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847117.

The product of its (nonzero) digits is 4032, while the sum is 34.

Adding to 1002112120987 its reverse (7890212112001), we get a palindrome (8892324232988).

The spelling of 1002112120987 in words is "one trillion, two billion, one hundred twelve million, one hundred twenty thousand, nine hundred eighty-seven".