3123203223313 has 4 divisors (see below), whose sum is σ = 3123209935908. Its totient is φ = 3123196510720.

The previous prime is 3123203223307. The next prime is 3123203223337. The reversal of 3123203223313 is 3133223023213.

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 907728751504 + 2215474471809 = 952748^2 + 1488447^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123203223313 - 2⁵ = 3123203223281 is a prime.

It is a super-2 number, since 2×3123203223313² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123203223913) 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, 2601856 + ... + 3607777.

It is an arithmetic number, because the mean of its divisors is an integer number (780802483977).

Almost surely, 2^{3123203223313} is an apocalyptic number.

It is an amenable number.

3123203223313 is a deficient number, since it is larger than the sum of its proper divisors (6712595).

3123203223313 is an equidigital number, since it uses as much as digits as its factorization.

3123203223313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6712594.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 3123203223313 its reverse (3133223023213), we get a palindrome (6256426246526).

The spelling of 3123203223313 in words is "three trillion, one hundred twenty-three billion, two hundred three million, two hundred twenty-three thousand, three hundred thirteen".