1002112001191 has 4 divisors (see below), whose sum is σ = 1145270858512. Its totient is φ = 858953143872.

The previous prime is 1002112001183. The next prime is 1002112001201. The reversal of 1002112001191 is 1911002112001.

1002112001191 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 is a cyclic number.

It is not a de Polignac number, because 1002112001191 - 2³ = 1002112001183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002112091191) 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, 71579428650 + ... + 71579428663.

It is an arithmetic number, because the mean of its divisors is an integer number (286317714628).

Almost surely, 2^{1002112001191} is an apocalyptic number.

1002112001191 is a deficient number, since it is larger than the sum of its proper divisors (143158857321).

1002112001191 is an equidigital number, since it uses as much as digits as its factorization.

1002112001191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143158857320.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 1002112001191 its reverse (1911002112001), we get a palindrome (2913114113192).

The spelling of 1002112001191 in words is "one trillion, two billion, one hundred twelve million, one thousand, one hundred ninety-one".