2311143353 has 4 divisors (see below), whose sum is σ = 2447092980. Its totient is φ = 2175193728.

The previous prime is 2311143349. The next prime is 2311143377. The reversal of 2311143353 is 3533411132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1892859049 + 418284304 = 43507^2 + 20452^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311143353 - 2² = 2311143349 is a prime.

It is a super-4 number, since 4×2311143353⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311143323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67974788 + ... + 67974821.

It is an arithmetic number, because the mean of its divisors is an integer number (611773245).

Almost surely, 2^2311143353 is an apocalyptic number.

It is an amenable number.

2311143353 is a deficient number, since it is larger than the sum of its proper divisors (135949627).

2311143353 is a wasteful number, since it uses less digits than its factorization.

2311143353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135949626.

The product of its digits is 3240, while the sum is 26.

The square root of 2311143353 is about 48074.3523409312. The cubic root of 2311143353 is about 1322.1344700155.

Adding to 2311143353 its reverse (3533411132), we get a palindrome (5844554485).

The spelling of 2311143353 in words is "two billion, three hundred eleven million, one hundred forty-three thousand, three hundred fifty-three".