2331223020013 has 4 divisors (see below), whose sum is σ = 2333355887548. Its totient is φ = 2329090152480.

The previous prime is 2331223020001. The next prime is 2331223020017. The reversal of 2331223020013 is 3100203221332.

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 1811465652649 + 519757367364 = 1345907^2 + 720942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331223020013 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 (2331223020017) 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, 1066432128 + ... + 1066434313.

It is an arithmetic number, because the mean of its divisors is an integer number (583338971887).

Almost surely, 2^{2331223020013} is an apocalyptic number.

It is an amenable number.

2331223020013 is a deficient number, since it is larger than the sum of its proper divisors (2132867535).

2331223020013 is a wasteful number, since it uses less digits than its factorization.

2331223020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132867534.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2331223020013 its reverse (3100203221332), we get a palindrome (5431426241345).

The spelling of 2331223020013 in words is "two trillion, three hundred thirty-one billion, two hundred twenty-three million, twenty thousand, thirteen".