2311354243 has 4 divisors (see below), whose sum is σ = 2521477368. Its totient is φ = 2101231120.

The previous prime is 2311354223. The next prime is 2311354261. The reversal of 2311354243 is 3424531132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2311354243 - 2²¹ = 2309257091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311354223) 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, 105061546 + ... + 105061567.

It is an arithmetic number, because the mean of its divisors is an integer number (630369342).

Almost surely, 2^2311354243 is an apocalyptic number.

2311354243 is a deficient number, since it is larger than the sum of its proper divisors (210123125).

2311354243 is a wasteful number, since it uses less digits than its factorization.

2311354243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210123124.

The product of its digits is 8640, while the sum is 28.

The square root of 2311354243 is about 48076.5456641802. The cubic root of 2311354243 is about 1322.1746833667.

Adding to 2311354243 its reverse (3424531132), we get a palindrome (5735885375).

The spelling of 2311354243 in words is "two billion, three hundred eleven million, three hundred fifty-four thousand, two hundred forty-three".