2001310771 has 4 divisors (see below), whose sum is σ = 2119034952. Its totient is φ = 1883586592.

The previous prime is 2001310763. The next prime is 2001310777. The reversal of 2001310771 is 1770131002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1770131002 = 2 ⋅885065501.

It is a cyclic number.

It is not a de Polignac number, because 2001310771 - 2³ = 2001310763 is a prime.

It is a super-2 number, since 2×2001310771² = 8010489604241228882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001310777) 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, 58862065 + ... + 58862098.

It is an arithmetic number, because the mean of its divisors is an integer number (529758738).

Almost surely, 2^2001310771 is an apocalyptic number.

2001310771 is a deficient number, since it is larger than the sum of its proper divisors (117724181).

2001310771 is a wasteful number, since it uses less digits than its factorization.

2001310771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117724180.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 2001310771 is about 44736.0120149304. The cubic root of 2001310771 is about 1260.1962344487.

Adding to 2001310771 its reverse (1770131002), we get a palindrome (3771441773).

The spelling of 2001310771 in words is "two billion, one million, three hundred ten thousand, seven hundred seventy-one".