3213232031 has 4 divisors (see below), whose sum is σ = 3213523200. Its totient is φ = 3212940864.

The previous prime is 3213231979. The next prime is 3213232073. The reversal of 3213232031 is 1302323123.

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-3213232031 is a prime.

It is a super-2 number, since 2×3213232031² = 20649720170088769922, 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 = 3213231994 and 3213232012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213232081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128351 + ... + 151328.

It is an arithmetic number, because the mean of its divisors is an integer number (803380800).

Almost surely, 2^3213232031 is an apocalyptic number.

3213232031 is a deficient number, since it is larger than the sum of its proper divisors (291169).

3213232031 is a wasteful number, since it uses less digits than its factorization.

3213232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291168.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3213232031 is about 56685.3775765850. The cubic root of 3213232031 is about 1475.6409404081.

Adding to 3213232031 its reverse (1302323123), we get a palindrome (4515555154).

The spelling of 3213232031 in words is "three billion, two hundred thirteen million, two hundred thirty-two thousand, thirty-one".