2101322123311 has 4 divisors (see below), whose sum is σ = 2111988733272. Its totient is φ = 2090655513352.

The previous prime is 2101322123293. The next prime is 2101322123353. The reversal of 2101322123311 is 1133212231012.

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 2101322123311 - 2⁹ = 2101322122799 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 (2101322123011) 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, 5333304685 + ... + 5333305078.

It is an arithmetic number, because the mean of its divisors is an integer number (527997183318).

Almost surely, 2^{2101322123311} is an apocalyptic number.

2101322123311 is a deficient number, since it is larger than the sum of its proper divisors (10666609961).

2101322123311 is a wasteful number, since it uses less digits than its factorization.

2101322123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666609960.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2101322123311 its reverse (1133212231012), we get a palindrome (3234534354323).

The spelling of 2101322123311 in words is "two trillion, one hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, three hundred eleven".