13140244551231 has 48 divisors (see below), whose sum is σ = 21704875745280. Its totient is φ = 7504197592320.

The previous prime is 13140244551193. The next prime is 13140244551307. The reversal of 13140244551231 is 13215544204131.

13140244551231 is a `hidden beast` number, since 1 + 3 + 1 + 40 + 2 + 44 + 551 + 23 + 1 = 666.

It is not a de Polignac number, because 13140244551231 - 2¹³ = 13140244543039 is a prime.

It is a super-2 number, since 2×13140244551231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140244551631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1392117810 + ... + 1392127248.

It is an arithmetic number, because the mean of its divisors is an integer number (452184911360).

Almost surely, 2^{13140244551231} is an apocalyptic number.

13140244551231 is a deficient number, since it is larger than the sum of its proper divisors (8564631194049).

13140244551231 is a wasteful number, since it uses less digits than its factorization.

13140244551231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396 (or 20393 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 13140244551231 its reverse (13215544204131), we get a palindrome (26355788755362).

The spelling of 13140244551231 in words is "thirteen trillion, one hundred forty billion, two hundred forty-four million, five hundred fifty-one thousand, two hundred thirty-one".