23212502144505 has 24 divisors (see below), whose sum is σ = 40262061670272. Its totient is φ = 12371675619744.

The previous prime is 23212502144437. The next prime is 23212502144509. The reversal of 23212502144505 is 50544120521232.

23212502144505 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 2 + 5 + 0 + 2 + 144 + 505 = 666.

It is not a de Polignac number, because 23212502144505 - 2¹¹ = 23212502142457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23212502144505.

It is not an unprimeable number, because it can be changed into a prime (23212502144509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173380759 + ... + 173514588.

It is an arithmetic number, because the mean of its divisors is an integer number (1677585902928).

Almost surely, 2^{23212502144505} is an apocalyptic number.

It is an amenable number.

23212502144505 is a deficient number, since it is larger than the sum of its proper divisors (17049559525767).

23212502144505 is a wasteful number, since it uses less digits than its factorization.

23212502144505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346896845 (or 346896842 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 23212502144505 its reverse (50544120521232), we get a palindrome (73756622665737).

The spelling of 23212502144505 in words is "twenty-three trillion, two hundred twelve billion, five hundred two million, one hundred forty-four thousand, five hundred five".