3123303301213 has 4 divisors (see below), whose sum is σ = 3125703996828. Its totient is φ = 3120902605600.

The previous prime is 3123303301189. The next prime is 3123303301229. The reversal of 3123303301213 is 3121033033213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307978381764 + 2815324919449 = 554958^2 + 1677893^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123303301213 - 2¹³ = 3123303293021 is a prime.

It is a super-2 number, since 2×3123303301213² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123303301513) 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, 1200345856 + ... + 1200348457.

It is an arithmetic number, because the mean of its divisors is an integer number (781425999207).

Almost surely, 2^{3123303301213} is an apocalyptic number.

It is an amenable number.

3123303301213 is a deficient number, since it is larger than the sum of its proper divisors (2400695615).

3123303301213 is a wasteful number, since it uses less digits than its factorization.

3123303301213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400695614.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 3123303301213 its reverse (3121033033213), we get a palindrome (6244336334426).

The spelling of 3123303301213 in words is "three trillion, one hundred twenty-three billion, three hundred three million, three hundred one thousand, two hundred thirteen".