23520145215 has 16 divisors (see below), whose sum is σ = 43008265728. Its totient is φ = 10752066336.

The previous prime is 23520145213. The next prime is 23520145249. The reversal of 23520145215 is 51254102532.

It is not a de Polignac number, because 23520145215 - 2¹ = 23520145213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520145213) 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, 112000587 + ... + 112000796.

It is an arithmetic number, because the mean of its divisors is an integer number (2688016608).

Almost surely, 2^23520145215 is an apocalyptic number.

23520145215 is a deficient number, since it is larger than the sum of its proper divisors (19488120513).

23520145215 is a wasteful number, since it uses less digits than its factorization.

23520145215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224001398.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 23520145215 its reverse (51254102532), we get a palindrome (74774247747).

The spelling of 23520145215 in words is "twenty-three billion, five hundred twenty million, one hundred forty-five thousand, two hundred fifteen".