3121331220343 has 8 divisors (see below), whose sum is σ = 3567631628160. Its totient is φ = 2675129799480.

The previous prime is 3121331220341. The next prime is 3121331220347. The reversal of 3121331220343 is 3430221331213.

3121331220343 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 3121331220343 - 2¹ = 3121331220341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121331220341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24679153 + ... + 24805306.

It is an arithmetic number, because the mean of its divisors is an integer number (445953953520).

Almost surely, 2^{3121331220343} is an apocalyptic number.

3121331220343 is a deficient number, since it is larger than the sum of its proper divisors (446300407817).

3121331220343 is an equidigital number, since it uses as much as digits as its factorization.

3121331220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49493477.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 3121331220343 its reverse (3430221331213), we get a palindrome (6551552551556).

The spelling of 3121331220343 in words is "three trillion, one hundred twenty-one billion, three hundred thirty-one million, two hundred twenty thousand, three hundred forty-three".