2101101232111 has 4 divisors (see below), whose sum is σ = 2401258550992. Its totient is φ = 1800943913232.

The previous prime is 2101101232103. The next prime is 2101101232121. The reversal of 2101101232111 is 1112321011012.

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 2101101232111 - 2³ = 2101101232103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101101232121) 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, 150078659430 + ... + 150078659443.

It is an arithmetic number, because the mean of its divisors is an integer number (600314637748).

Almost surely, 2^{2101101232111} is an apocalyptic number.

2101101232111 is a deficient number, since it is larger than the sum of its proper divisors (300157318881).

2101101232111 is an equidigital number, since it uses as much as digits as its factorization.

2101101232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300157318880.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2101101232111 its reverse (1112321011012), we get a palindrome (3213422243123).

The spelling of 2101101232111 in words is "two trillion, one hundred one billion, one hundred one million, two hundred thirty-two thousand, one hundred eleven".