3123338320861 has 16 divisors (see below), whose sum is σ = 3524882362560. Its totient is φ = 2741401192320.

The previous prime is 3123338320859. The next prime is 3123338320873. The reversal of 3123338320861 is 1680238333213.

It is a happy number.

3123338320861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3123338320861 - 2¹ = 3123338320859 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 (3123338320841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11216626 + ... + 11491708.

It is an arithmetic number, because the mean of its divisors is an integer number (220305147660).

Almost surely, 2^{3123338320861} is an apocalyptic number.

It is an amenable number.

3123338320861 is a deficient number, since it is larger than the sum of its proper divisors (401544041699).

3123338320861 is a wasteful number, since it uses less digits than its factorization.

3123338320861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310716.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 3123338320861 in words is "three trillion, one hundred twenty-three billion, three hundred thirty-eight million, three hundred twenty thousand, eight hundred sixty-one".