2313221332552 has 32 divisors (see below), whose sum is σ = 4682575973880. Its totient is φ = 1064978150400.

The previous prime is 2313221332531. The next prime is 2313221332559. The reversal of 2313221332552 is 2552331223132.

It can be written as a sum of positive squares in 4 ways, for example, as 1659474698436 + 653746634116 = 1288206^2 + 808546^2 .

It is not an unprimeable number, because it can be changed into a prime (2313221332559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27692103 + ... + 27775510.

Almost surely, 2^{2313221332552} is an apocalyptic number.

It is an amenable number.

2313221332552 is an abundant number, since it is smaller than the sum of its proper divisors (2369354641328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2313221332552 is a wasteful number, since it uses less digits than its factorization.

2313221332552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55468033 (or 55468029 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

Adding to 2313221332552 its reverse (2552331223132), we get a palindrome (4865552555684).

The spelling of 2313221332552 in words is "two trillion, three hundred thirteen billion, two hundred twenty-one million, three hundred thirty-two thousand, five hundred fifty-two".