2102113133111 has 4 divisors (see below), whose sum is σ = 2102116846632. Its totient is φ = 2102109419592.

The previous prime is 2102113133101. The next prime is 2102113133129. The reversal of 2102113133111 is 1113313112012.

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-2102113133111 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 (2102113133101) 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, 811520 + ... + 2205173.

It is an arithmetic number, because the mean of its divisors is an integer number (525529211658).

Almost surely, 2^{2102113133111} is an apocalyptic number.

2102113133111 is a deficient number, since it is larger than the sum of its proper divisors (3713521).

2102113133111 is an equidigital number, since it uses as much as digits as its factorization.

2102113133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713520.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 2102113133111 its reverse (1113313112012), we get a palindrome (3215426245123).

The spelling of 2102113133111 in words is "two trillion, one hundred two billion, one hundred thirteen million, one hundred thirty-three thousand, one hundred eleven".