2100100100011 has 4 divisors (see below), whose sum is σ = 2100111335800. Its totient is φ = 2100088864224.

The previous prime is 2100100099921. The next prime is 2100100100053. The reversal of 2100100100011 is 1100010010012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100100100011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100100099967 and 2100100100003.

It is not an unprimeable number, because it can be changed into a prime (2100100100311) 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, 5332701 + ... + 5712958.

It is an arithmetic number, because the mean of its divisors is an integer number (525027833950).

Almost surely, 2^{2100100100011} is an apocalyptic number.

2100100100011 is a deficient number, since it is larger than the sum of its proper divisors (11235789).

2100100100011 is a wasteful number, since it uses less digits than its factorization.

2100100100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235788.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 2100100100011 its reverse (1100010010012), we get a palindrome (3200110110023).

The spelling of 2100100100011 in words is "two trillion, one hundred billion, one hundred million, one hundred thousand, eleven".