2313043433521 has 8 divisors (see below), whose sum is σ = 2338256811240. Its totient is φ = 2287857965568.

The previous prime is 2313043433489. The next prime is 2313043433567. The reversal of 2313043433521 is 1253343403132.

It can be written as a sum of positive squares in 4 ways, for example, as 120159289600 + 2192884143921 = 346640^2 + 1480839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2313043433521 - 2⁵ = 2313043433489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313043433821) 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, 6810766 + ... + 7142311.

It is an arithmetic number, because the mean of its divisors is an integer number (292282101405).

Almost surely, 2^{2313043433521} is an apocalyptic number.

It is an amenable number.

2313043433521 is a deficient number, since it is larger than the sum of its proper divisors (25213377719).

2313043433521 is a wasteful number, since it uses less digits than its factorization.

2313043433521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13954883.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 2313043433521 its reverse (1253343403132), we get a palindrome (3566386836653).

The spelling of 2313043433521 in words is "two trillion, three hundred thirteen billion, forty-three million, four hundred thirty-three thousand, five hundred twenty-one".