3231321213231 has 32 divisors (see below), whose sum is σ = 4916980882880. Its totient is φ = 2095797691008.

The previous prime is 3231321213223. The next prime is 3231321213247. The reversal of 3231321213231 is 1323121231323.

3231321213231 is a `hidden beast` number, since 3 + 2 + 313 + 2 + 1 + 21 + 323 + 1 = 666.

3231321213231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3231321213231 - 2³ = 3231321213223 is a prime.

It is a super-3 number, since 3×3231321213231³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3231321213195 and 3231321213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231321213251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11041365 + ... + 11330241.

It is an arithmetic number, because the mean of its divisors is an integer number (153655652590).

Almost surely, 2^{3231321213231} is an apocalyptic number.

3231321213231 is a deficient number, since it is larger than the sum of its proper divisors (1685659669649).

3231321213231 is a wasteful number, since it uses less digits than its factorization.

3231321213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300120 (or 300114 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 3231321213231 its reverse (1323121231323), we get a palindrome (4554442444554).

The spelling of 3231321213231 in words is "three trillion, two hundred thirty-one billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred thirty-one".