3231021 has 8 divisors (see below), whose sum is σ = 4362880. Its totient is φ = 2126592.

The previous prime is 3231001. The next prime is 3231023. The reversal of 3231021 is 1201323.

It is a happy number.

3231021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3231021 - 2⁶ = 3230957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3230988 and 3231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6580 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (545360).

Almost surely, 2^3231021 is an apocalyptic number.

It is an amenable number.

3231021 is a deficient number, since it is larger than the sum of its proper divisors (1131859).

3231021 is a wasteful number, since it uses less digits than its factorization.

3231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13715.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3231021 is about 1797.5041029160. The cubic root of 3231021 is about 147.8359059059.

Adding to 3231021 its reverse (1201323), we get a palindrome (4432344).

The spelling of 3231021 in words is "three million, two hundred thirty-one thousand, twenty-one".