3213432331 has 4 divisors (see below), whose sum is σ = 3218294464. Its totient is φ = 3208570200.

The previous prime is 3213432311. The next prime is 3213432349. The reversal of 3213432331 is 1332343123.

3213432331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3213432331 is a prime.

It is a super-2 number, since 2×3213432331² = 20652294691832187122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213432296 and 3213432305.

It is not an unprimeable number, because it can be changed into a prime (3213432301) 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, 2430075 + ... + 2431396.

It is an arithmetic number, because the mean of its divisors is an integer number (804573616).

Almost surely, 2^3213432331 is an apocalyptic number.

3213432331 is a deficient number, since it is larger than the sum of its proper divisors (4862133).

3213432331 is an equidigital number, since it uses as much as digits as its factorization.

3213432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862132.

The product of its digits is 3888, while the sum is 25.

The square root of 3213432331 is about 56687.1443186195. The cubic root of 3213432331 is about 1475.6716016174.

Adding to 3213432331 its reverse (1332343123), we get a palindrome (4545775454).

The spelling of 3213432331 in words is "three billion, two hundred thirteen million, four hundred thirty-two thousand, three hundred thirty-one".