13231152541205 has 4 divisors (see below), whose sum is σ = 15877383049452. Its totient is φ = 10584922032960.

The previous prime is 13231152541181. The next prime is 13231152541273. The reversal of 13231152541205 is 50214525113231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8212087474276 + 5019065066929 = 2865674^2 + 2240327^2 .

It is not a de Polignac number, because 13231152541205 - 2¹⁶ = 13231152475669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1323115254116 + ... + 1323115254125.

It is an arithmetic number, because the mean of its divisors is an integer number (3969345762363).

Almost surely, 2^{13231152541205} is an apocalyptic number.

It is an amenable number.

13231152541205 is a deficient number, since it is larger than the sum of its proper divisors (2646230508247).

13231152541205 is an equidigital number, since it uses as much as digits as its factorization.

13231152541205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646230508246.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 13231152541205 its reverse (50214525113231), we get a palindrome (63445677654436).

The spelling of 13231152541205 in words is "thirteen trillion, two hundred thirty-one billion, one hundred fifty-two million, five hundred forty-one thousand, two hundred five".