3120344143021 has 4 divisors (see below), whose sum is σ = 3566107592032. Its totient is φ = 2674580694012.

The previous prime is 3120344142997. The next prime is 3120344143027. The reversal of 3120344143021 is 1203414430213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3120344143021 - 2¹⁵ = 3120344110253 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 (3120344143027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222881724495 + ... + 222881724508.

It is an arithmetic number, because the mean of its divisors is an integer number (891526898008).

Almost surely, 2^{3120344143021} is an apocalyptic number.

It is an amenable number.

3120344143021 is a deficient number, since it is larger than the sum of its proper divisors (445763449011).

3120344143021 is an equidigital number, since it uses as much as digits as its factorization.

3120344143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445763449010.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 3120344143021 its reverse (1203414430213), we get a palindrome (4323758573234).

The spelling of 3120344143021 in words is "three trillion, one hundred twenty billion, three hundred forty-four million, one hundred forty-three thousand, twenty-one".