1002001110111 has 24 divisors (see below), whose sum is σ = 1510747729920. Its totient is φ = 638751958416.

The previous prime is 1002001110059. The next prime is 1002001110137. The reversal of 1002001110111 is 1110111002001.

It is not a de Polignac number, because 1002001110111 - 2²³ = 1001992721503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1002001110093 and 1002001110102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002001110161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130351 + ... + 1421616.

It is an arithmetic number, because the mean of its divisors is an integer number (62947822080).

Almost surely, 2^{1002001110111} is an apocalyptic number.

1002001110111 is a deficient number, since it is larger than the sum of its proper divisors (508746619809).

1002001110111 is a wasteful number, since it uses less digits than its factorization.

1002001110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555115 (or 1555112 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1002001110111 its reverse (1110111002001), we get a palindrome (2112112112112).

The spelling of 1002001110111 in words is "one trillion, two billion, one million, one hundred ten thousand, one hundred eleven".