23106541538 has 4 divisors (see below), whose sum is σ = 34659812310. Its totient is φ = 11553270768.

The previous prime is 23106541531. The next prime is 23106541541. The reversal of 23106541538 is 83514560132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13159072369 + 9947469169 = 114713^2 + 99737^2 .

It is not an unprimeable number, because it can be changed into a prime (23106541531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776635383 + ... + 5776635386.

Almost surely, 2^23106541538 is an apocalyptic number.

23106541538 is a deficient number, since it is larger than the sum of its proper divisors (11553270772).

23106541538 is a wasteful number, since it uses less digits than its factorization.

23106541538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11553270771.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 23106541538 in words is "twenty-three billion, one hundred six million, five hundred forty-one thousand, five hundred thirty-eight".