3121683343835 has 16 divisors (see below), whose sum is σ = 4293432696000. Its totient is φ = 2134449380736.

The previous prime is 3121683343741. The next prime is 3121683343837. The reversal of 3121683343835 is 5383433861213.

It is a cyclic number.

It is not a de Polignac number, because 3121683343835 - 2²² = 3121679149531 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 127768520 + ... + 127792949.

It is an arithmetic number, because the mean of its divisors is an integer number (268339543500).

Almost surely, 2^{3121683343835} is an apocalyptic number.

3121683343835 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3121683343835 is a deficient number, since it is larger than the sum of its proper divisors (1171749352165).

3121683343835 is a wasteful number, since it uses less digits than its factorization.

3121683343835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255561830.

The product of its digits is 3732480, while the sum is 50.

The spelling of 3121683343835 in words is "three trillion, one hundred twenty-one billion, six hundred eighty-three million, three hundred forty-three thousand, eight hundred thirty-five".