2101331311 has 8 divisors (see below), whose sum is σ = 2180361344. Its totient is φ = 2023004160.

The previous prime is 2101331279. The next prime is 2101331341. The reversal of 2101331311 is 1131331012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101331311 - 2⁵ = 2101331279 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 (2101331341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169626 + ... + 181591.

It is an arithmetic number, because the mean of its divisors is an integer number (272545168).

Almost surely, 2^2101331311 is an apocalyptic number.

2101331311 is a deficient number, since it is larger than the sum of its proper divisors (79030033).

2101331311 is a wasteful number, since it uses less digits than its factorization.

2101331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351441.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2101331311 is about 45840.2804419868. The cubic root of 2101331311 is about 1280.8497187951.

Adding to 2101331311 its reverse (1131331012), we get a palindrome (3232662323).

The spelling of 2101331311 in words is "two billion, one hundred one million, three hundred thirty-one thousand, three hundred eleven".