3221431233 has 16 divisors (see below), whose sum is σ = 4450384896. Its totient is φ = 2071077120.

The previous prime is 3221431231. The next prime is 3221431243. The reversal of 3221431233 is 3321341223.

It is not a de Polignac number, because 3221431233 - 2¹ = 3221431231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221431231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115873 + ... + 140958.

It is an arithmetic number, because the mean of its divisors is an integer number (278149056).

Almost surely, 2^3221431233 is an apocalyptic number.

It is an amenable number.

3221431233 is a deficient number, since it is larger than the sum of its proper divisors (1228953663).

3221431233 is a wasteful number, since it uses less digits than its factorization.

3221431233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256984.

The product of its digits is 2592, while the sum is 24.

The square root of 3221431233 is about 56757.6535191511. The cubic root of 3221431233 is about 1476.8950050101.

Adding to 3221431233 its reverse (3321341223), we get a palindrome (6542772456).

The spelling of 3221431233 in words is "three billion, two hundred twenty-one million, four hundred thirty-one thousand, two hundred thirty-three".