1002100010111 has 4 divisors (see below), whose sum is σ = 1045669575792. Its totient is φ = 958530444432.

The previous prime is 1002100010081. The next prime is 1002100010113. The reversal of 1002100010111 is 1110100012001.

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 1002100010111 - 2¹⁰ = 1002100009087 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 (1002100010113) 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, 21784782806 + ... + 21784782851.

It is an arithmetic number, because the mean of its divisors is an integer number (261417393948).

Almost surely, 2^{1002100010111} is an apocalyptic number.

1002100010111 is a deficient number, since it is larger than the sum of its proper divisors (43569565681).

1002100010111 is an equidigital number, since it uses as much as digits as its factorization.

1002100010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43569565680.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1002100010111 its reverse (1110100012001), we get a palindrome (2112200022112).

The spelling of 1002100010111 in words is "one trillion, two billion, one hundred million, ten thousand, one hundred eleven".