3121303223321 has 8 divisors (see below), whose sum is σ = 3140145973440. Its totient is φ = 3102462286768.

The previous prime is 3121303223263. The next prime is 3121303223327. The reversal of 3121303223321 is 1233223031213.

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 3121303223321 - 2³⁰ = 3120229481497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121303223327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3082115 + ... + 3967623.

It is an arithmetic number, because the mean of its divisors is an integer number (392518246680).

Almost surely, 2^{3121303223321} is an apocalyptic number.

It is an amenable number.

3121303223321 is a deficient number, since it is larger than the sum of its proper divisors (18842750119).

3121303223321 is a wasteful number, since it uses less digits than its factorization.

3121303223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906783.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 3121303223321 its reverse (1233223031213), we get a palindrome (4354526254534).

The spelling of 3121303223321 in words is "three trillion, one hundred twenty-one billion, three hundred three million, two hundred twenty-three thousand, three hundred twenty-one".