3120021021313 has 4 divisors (see below), whose sum is σ = 3565738310080. Its totient is φ = 2674303732548.

The previous prime is 3120021021289. The next prime is 3120021021347. The reversal of 3120021021313 is 3131201200213.

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 not a de Polignac number, because 3120021021313 - 2¹⁷ = 3120020890241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120021021713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222858644373 + ... + 222858644386.

It is an arithmetic number, because the mean of its divisors is an integer number (891434577520).

Almost surely, 2^{3120021021313} is an apocalyptic number.

It is an amenable number.

3120021021313 is a deficient number, since it is larger than the sum of its proper divisors (445717288767).

3120021021313 is an equidigital number, since it uses as much as digits as its factorization.

3120021021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445717288766.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 3120021021313 its reverse (3131201200213), we get a palindrome (6251222221526).

The spelling of 3120021021313 in words is "three trillion, one hundred twenty billion, twenty-one million, twenty-one thousand, three hundred thirteen".