23638300213 has 6 divisors (see below), whose sum is σ = 25982594582. Its totient is φ = 21489363720.

The previous prime is 23638300201. The next prime is 23638300243. The reversal of 23638300213 is 31200383632.

It can be written as a sum of positive squares in only one way, i.e., 18716155249 + 4922144964 = 136807^2 + 70158^2 .

It is not a de Polignac number, because 23638300213 - 2⁵ = 23638300181 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 (23638300243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97678806 + ... + 97679047.

Almost surely, 2^23638300213 is an apocalyptic number.

It is an amenable number.

23638300213 is a deficient number, since it is larger than the sum of its proper divisors (2344294369).

23638300213 is a wasteful number, since it uses less digits than its factorization.

23638300213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195357875 (or 195357864 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 23638300213 its reverse (31200383632), we get a palindrome (54838683845).

The spelling of 23638300213 in words is "twenty-three billion, six hundred thirty-eight million, three hundred thousand, two hundred thirteen".