11305106638 has 24 divisors (see below), whose sum is σ = 19731051144. Its totient is φ = 4843868400.

The previous prime is 11305106621. The next prime is 11305106653. The reversal of 11305106638 is 83660150311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479568 + ... + 502588.

It is an arithmetic number, because the mean of its divisors is an integer number (822127131).

Almost surely, 2^11305106638 is an apocalyptic number.

11305106638 is a deficient number, since it is larger than the sum of its proper divisors (8425944506).

11305106638 is a wasteful number, since it uses less digits than its factorization.

11305106638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28048 (or 28041 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 11305106638 its reverse (83660150311), we get a palindrome (94965256949).

The spelling of 11305106638 in words is "eleven billion, three hundred five million, one hundred six thousand, six hundred thirty-eight".