2231311043 has 4 divisors (see below), whose sum is σ = 2402950368. Its totient is φ = 2059671720.

The previous prime is 2231311031. The next prime is 2231311063. The reversal of 2231311043 is 3401131322.

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 2231311043 - 2¹² = 2231306947 is a prime.

It is a super-3 number, since 3×2231311043³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231311063) 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, 85819643 + ... + 85819668.

It is an arithmetic number, because the mean of its divisors is an integer number (600737592).

Almost surely, 2^2231311043 is an apocalyptic number.

2231311043 is a deficient number, since it is larger than the sum of its proper divisors (171639325).

2231311043 is a wasteful number, since it uses less digits than its factorization.

2231311043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171639324.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2231311043 is about 47236.7552124402. The cubic root of 2231311043 is about 1306.7325369476.

Adding to 2231311043 its reverse (3401131322), we get a palindrome (5632442365).

The spelling of 2231311043 in words is "two billion, two hundred thirty-one million, three hundred eleven thousand, forty-three".