2101313287 has 8 divisors (see below), whose sum is σ = 2164522256. Its totient is φ = 2038442112.

The previous prime is 2101313273. The next prime is 2101313311. The reversal of 2101313287 is 7823131012.

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 2101313287 - 2²³ = 2092924679 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 (2101313257) 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, 71793 + ... + 96730.

It is an arithmetic number, because the mean of its divisors is an integer number (270565282).

Almost surely, 2^2101313287 is an apocalyptic number.

2101313287 is a deficient number, since it is larger than the sum of its proper divisors (63208969).

2101313287 is a wasteful number, since it uses less digits than its factorization.

2101313287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168897.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2101313287 is about 45840.0838459094. The cubic root of 2101313287 is about 1280.8460566563.

Adding to 2101313287 its reverse (7823131012), we get a palindrome (9924444299).

The spelling of 2101313287 in words is "two billion, one hundred one million, three hundred thirteen thousand, two hundred eighty-seven".