2100434421111 has 16 divisors (see below), whose sum is σ = 3032857618560. Its totient is φ = 1285353934560.

The previous prime is 2100434421097. The next prime is 2100434421119. The reversal of 2100434421111 is 1111244340012.

It is a happy number.

It is not a de Polignac number, because 2100434421111 - 2⁶ = 2100434421047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100434421119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150432385 + ... + 150446346.

It is an arithmetic number, because the mean of its divisors is an integer number (189553601160).

Almost surely, 2^{2100434421111} is an apocalyptic number.

2100434421111 is a deficient number, since it is larger than the sum of its proper divisors (932423197449).

2100434421111 is a wasteful number, since it uses less digits than its factorization.

2100434421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300878926.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 2100434421111 its reverse (1111244340012), we get a palindrome (3211678761123).

The spelling of 2100434421111 in words is "two trillion, one hundred billion, four hundred thirty-four million, four hundred twenty-one thousand, one hundred eleven".