3121683343836 has 24 divisors (see below), whose sum is σ = 7383707637264. Its totient is φ = 1026306852480.

The previous prime is 3121683343741. The next prime is 3121683343837. The reversal of 3121683343836 is 6383433861213.

It is a super-2 number, since 2×3121683343836² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121683343837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781781855 + ... + 1781783606.

It is an arithmetic number, because the mean of its divisors is an integer number (307654484886).

Almost surely, 2^{3121683343836} is an apocalyptic number.

It is an amenable number.

3121683343836 is an abundant number, since it is smaller than the sum of its proper divisors (4262024293428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121683343836 is a wasteful number, since it uses less digits than its factorization.

3121683343836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563565541 (or 3563565539 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 51.

The spelling of 3121683343836 in words is "three trillion, one hundred twenty-one billion, six hundred eighty-three million, three hundred forty-three thousand, eight hundred thirty-six".