3223111231 has 4 divisors (see below), whose sum is σ = 3244743000. Its totient is φ = 3201479464.

The previous prime is 3223111223. The next prime is 3223111249. The reversal of 3223111231 is 1321113223.

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 3223111231 - 2³ = 3223111223 is a prime.

It is a super-2 number, since 2×3223111231² = 20776892014796670722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 3223111199 and 3223111208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223111291) 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, 10815661 + ... + 10815958.

It is an arithmetic number, because the mean of its divisors is an integer number (811185750).

Almost surely, 2^3223111231 is an apocalyptic number.

3223111231 is a deficient number, since it is larger than the sum of its proper divisors (21631769).

3223111231 is a wasteful number, since it uses less digits than its factorization.

3223111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21631768.

The product of its digits is 216, while the sum is 19.

The square root of 3223111231 is about 56772.4513386554. The cubic root of 3223111231 is about 1477.1516972775.

Adding to 3223111231 its reverse (1321113223), we get a palindrome (4544224454).

The spelling of 3223111231 in words is "three billion, two hundred twenty-three million, one hundred eleven thousand, two hundred thirty-one".