3211223231 has 4 divisors (see below), whose sum is σ = 3380235000. Its totient is φ = 3042211464.

The previous prime is 3211223221. The next prime is 3211223233. The reversal of 3211223231 is 1323221123.

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 3211223231 - 2²² = 3207028927 is a prime.

It is a super-2 number, since 2×3211223231² = 20623909278628158722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211223233) 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, 84505856 + ... + 84505893.

It is an arithmetic number, because the mean of its divisors is an integer number (845058750).

Almost surely, 2^3211223231 is an apocalyptic number.

3211223231 is a deficient number, since it is larger than the sum of its proper divisors (169011769).

3211223231 is a wasteful number, since it uses less digits than its factorization.

3211223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169011768.

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

The square root of 3211223231 is about 56667.6559511685. The cubic root of 3211223231 is about 1475.3333699800. Note that the first 4 decimals are identical.

Adding to 3211223231 its reverse (1323221123), we get a palindrome (4534444354).

The spelling of 3211223231 in words is "three billion, two hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".