13201240234551 has 16 divisors (see below), whose sum is σ = 17611625180160. Its totient is φ = 8795841608000.

The previous prime is 13201240234543. The next prime is 13201240234603. The reversal of 13201240234551 is 15543204210231.

It is a cyclic number.

It is not a de Polignac number, because 13201240234551 - 2³ = 13201240234543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201240234541) 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, 112750426 + ... + 112867448.

It is an arithmetic number, because the mean of its divisors is an integer number (1100726573760).

Almost surely, 2^{13201240234551} is an apocalyptic number.

13201240234551 is a deficient number, since it is larger than the sum of its proper divisors (4410384945609).

13201240234551 is a wasteful number, since it uses less digits than its factorization.

13201240234551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138006.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 13201240234551 its reverse (15543204210231), we get a palindrome (28744444444782).

The spelling of 13201240234551 in words is "thirteen trillion, two hundred one billion, two hundred forty million, two hundred thirty-four thousand, five hundred fifty-one".