13251201233523 has 16 divisors (see below), whose sum is σ = 19795406267136. Its totient is φ = 7813976156640.

The previous prime is 13251201233471. The next prime is 13251201233623. The reversal of 13251201233523 is 32533210215231.

It is not a de Polignac number, because 13251201233523 - 2¹⁰ = 13251201232499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13251201233323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5426371111 + ... + 5426373552.

It is an arithmetic number, because the mean of its divisors is an integer number (1237212891696).

Almost surely, 2^{13251201233523} is an apocalyptic number.

13251201233523 is a deficient number, since it is larger than the sum of its proper divisors (6544205033613).

13251201233523 is a wasteful number, since it uses less digits than its factorization.

13251201233523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10852744714.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 13251201233523 its reverse (32533210215231), we get a palindrome (45784411448754).

The spelling of 13251201233523 in words is "thirteen trillion, two hundred fifty-one billion, two hundred one million, two hundred thirty-three thousand, five hundred twenty-three".