23515110521432 has 64 divisors (see below), whose sum is σ = 45284419509120. Its totient is φ = 11442173575168.

The previous prime is 23515110521407. The next prime is 23515110521437. The reversal of 23515110521432 is 23412501151532.

It is a junction number, because it is equal to n+sod(n) for n = 23515110521392 and 23515110521401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23515110521437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125606648 + ... + 125793720.

It is an arithmetic number, because the mean of its divisors is an integer number (707569054830).

Almost surely, 2^{23515110521432} is an apocalyptic number.

It is an amenable number.

23515110521432 is a deficient number, since it is larger than the sum of its proper divisors (21769308987688).

23515110521432 is a wasteful number, since it uses less digits than its factorization.

23515110521432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189020 (or 189016 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 23515110521432 its reverse (23412501151532), we get a palindrome (46927611672964).

The spelling of 23515110521432 in words is "twenty-three trillion, five hundred fifteen billion, one hundred ten million, five hundred twenty-one thousand, four hundred thirty-two".