1002112112011 has 4 divisors (see below), whose sum is σ = 1002956352552. Its totient is φ = 1001267871472.

The previous prime is 1002112111961. The next prime is 1002112112017. The reversal of 1002112112011 is 1102112112001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002112112011 - 2¹³ = 1002112103819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002112111982 and 1002112112000.

It is not an unprimeable number, because it can be changed into a prime (1002112112017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422118490 + ... + 422120863.

It is an arithmetic number, because the mean of its divisors is an integer number (250739088138).

Almost surely, 2^{1002112112011} is an apocalyptic number.

1002112112011 is a deficient number, since it is larger than the sum of its proper divisors (844240541).

1002112112011 is an equidigital number, since it uses as much as digits as its factorization.

1002112112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844240540.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002112112011 its reverse (1102112112001), we get a palindrome (2104224224012).

The spelling of 1002112112011 in words is "one trillion, two billion, one hundred twelve million, one hundred twelve thousand, eleven".