23203312230013 has 16 divisors (see below), whose sum is σ = 23359760210736. Its totient is φ = 23047128276480.

The previous prime is 23203312229969. The next prime is 23203312230017. The reversal of 23203312230013 is 31003221330232.

It can be written as a sum of positive squares in 8 ways, for example, as 4048317033849 + 19154995196164 = 2012043^2 + 4376642^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203312230013 - 2⁹ = 23203312229501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23203312230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203312230017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087186331 + ... + 2087197447.

It is an arithmetic number, because the mean of its divisors is an integer number (1459985013171).

Almost surely, 2^{23203312230013} is an apocalyptic number.

It is an amenable number.

23203312230013 is a deficient number, since it is larger than the sum of its proper divisors (156447980723).

23203312230013 is a wasteful number, since it uses less digits than its factorization.

23203312230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 23203312230013 its reverse (31003221330232), we get a palindrome (54206533560245).

The spelling of 23203312230013 in words is "twenty-three trillion, two hundred three billion, three hundred twelve million, two hundred thirty thousand, thirteen".