23213230013 has 4 divisors (see below), whose sum is σ = 23292456348. Its totient is φ = 23134003680.

The previous prime is 23213229983. The next prime is 23213230087. The reversal of 23213230013 is 31003231232.

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 22014547129 + 1198682884 = 148373^2 + 34622^2 .

It is a cyclic number.

It is not a de Polignac number, because 23213230013 - 2²² = 23209035709 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 (23213230213) 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, 39612728 + ... + 39613313.

It is an arithmetic number, because the mean of its divisors is an integer number (5823114087).

Almost surely, 2^23213230013 is an apocalyptic number.

It is an amenable number.

23213230013 is a deficient number, since it is larger than the sum of its proper divisors (79226335).

23213230013 is an equidigital number, since it uses as much as digits as its factorization.

23213230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79226334.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23213230013 its reverse (31003231232), we get a palindrome (54216461245).

The spelling of 23213230013 in words is "twenty-three billion, two hundred thirteen million, two hundred thirty thousand, thirteen".