2311140443 has 8 divisors (see below), whose sum is σ = 2316837600. Its totient is φ = 2305451968.

The previous prime is 2311140431. The next prime is 2311140467. The reversal of 2311140443 is 3440411132.

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 2311140443 - 2⁶ = 2311140379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311140493) 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, 999773 + ... + 1002081.

It is an arithmetic number, because the mean of its divisors is an integer number (289604700).

Almost surely, 2^2311140443 is an apocalyptic number.

2311140443 is a deficient number, since it is larger than the sum of its proper divisors (5697157).

2311140443 is a wasteful number, since it uses less digits than its factorization.

2311140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2311140443 is about 48074.3220753034. The cubic root of 2311140443 is about 1322.1339151079.

Adding to 2311140443 its reverse (3440411132), we get a palindrome (5751551575).

The spelling of 2311140443 in words is "two billion, three hundred eleven million, one hundred forty thousand, four hundred forty-three".