3120656353643 has 4 divisors (see below), whose sum is σ = 3158254623048. Its totient is φ = 3083058084240.

The previous prime is 3120656353631. The next prime is 3120656353669. The reversal of 3120656353643 is 3463536560213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3120656353643 - 2⁸ = 3120656353387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120656353613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18799134578 + ... + 18799134743.

It is an arithmetic number, because the mean of its divisors is an integer number (789563655762).

Almost surely, 2^{3120656353643} is an apocalyptic number.

3120656353643 is a deficient number, since it is larger than the sum of its proper divisors (37598269405).

3120656353643 is an equidigital number, since it uses as much as digits as its factorization.

3120656353643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37598269404.

The product of its (nonzero) digits is 3499200, while the sum is 47.

The spelling of 3120656353643 in words is "three trillion, one hundred twenty billion, six hundred fifty-six million, three hundred fifty-three thousand, six hundred forty-three".