23533105134 has 256 divisors, whose sum is σ = 64336011264. Its totient is φ = 5552025600.

The previous prime is 23533105111. The next prime is 23533105159. The reversal of 23533105134 is 43150133532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 34455157 + ... + 34455839.

It is an arithmetic number, because the mean of its divisors is an integer number (251312544).

Almost surely, 2^23533105134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23533105134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32168005632).

23533105134 is an abundant number, since it is smaller than the sum of its proper divisors (40802906130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23533105134 is a wasteful number, since it uses less digits than its factorization.

23533105134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 23533105134 its reverse (43150133532), we get a palindrome (66683238666).

The spelling of 23533105134 in words is "twenty-three billion, five hundred thirty-three million, one hundred five thousand, one hundred thirty-four".