2101311143 has 8 divisors (see below), whose sum is σ = 2150962176. Its totient is φ = 2051695800.

The previous prime is 2101311071. The next prime is 2101311169. The reversal of 2101311143 is 3411131012.

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 2101311143 - 2¹⁰ = 2101310119 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 (2101311943) 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, 138608 + ... + 153018.

It is an arithmetic number, because the mean of its divisors is an integer number (268870272).

Almost surely, 2^2101311143 is an apocalyptic number.

2101311143 is a deficient number, since it is larger than the sum of its proper divisors (49651033).

2101311143 is a wasteful number, since it uses less digits than its factorization.

2101311143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17845.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2101311143 is about 45840.0604602568. The cubic root of 2101311143 is about 1280.8456210343.

Adding to 2101311143 its reverse (3411131012), we get a palindrome (5512442155).

The spelling of 2101311143 in words is "two billion, one hundred one million, three hundred eleven thousand, one hundred forty-three".