2101210113311 has 4 divisors (see below), whose sum is σ = 2101225494000. Its totient is φ = 2101194732624.

The previous prime is 2101210113293. The next prime is 2101210113319. The reversal of 2101210113311 is 1133110121012.

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 2101210113311 - 2³⁸ = 1826332206367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101210113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101210113319) 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, 7483571 + ... + 7759268.

It is an arithmetic number, because the mean of its divisors is an integer number (525306373500).

Almost surely, 2^{2101210113311} is an apocalyptic number.

2101210113311 is a deficient number, since it is larger than the sum of its proper divisors (15380689).

2101210113311 is a wasteful number, since it uses less digits than its factorization.

2101210113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15380688.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2101210113311 its reverse (1133110121012), we get a palindrome (3234320234323).

The spelling of 2101210113311 in words is "two trillion, one hundred one billion, two hundred ten million, one hundred thirteen thousand, three hundred eleven".