23505042042 has 24 divisors (see below), whose sum is σ = 50934502944. Its totient is φ = 7833950664.

The previous prime is 23505042023. The next prime is 23505042047. The reversal of 23505042042 is 24024050532.

It is a happy number.

23505042042 is a `hidden beast` number, since 235 + 0 + 5 + 0 + 420 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23505041997 and 23505042015.

It is not an unprimeable number, because it can be changed into a prime (23505042047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53893 + ... + 223415.

It is an arithmetic number, because the mean of its divisors is an integer number (2122270956).

Almost surely, 2^23505042042 is an apocalyptic number.

23505042042 is an abundant number, since it is smaller than the sum of its proper divisors (27429460902).

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

23505042042 is a wasteful number, since it uses less digits than its factorization.

23505042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177234 (or 177231 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 23505042042 its reverse (24024050532), we get a palindrome (47529092574).

The spelling of 23505042042 in words is "twenty-three billion, five hundred five million, forty-two thousand, forty-two".