13143315323240 has 16 divisors (see below), whose sum is σ = 29572459477380. Its totient is φ = 5257326129280.

The previous prime is 13143315323161. The next prime is 13143315323267. The reversal of 13143315323240 is 4232351334131.

It can be written as a sum of positive squares in 2 ways, for example, as 12968050849924 + 175264473316 = 3601118^2 + 418646^2 .

It is a super-2 number, since 2×13143315323240² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13143315323240.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164291441501 + ... + 164291441580.

Almost surely, 2^{13143315323240} is an apocalyptic number.

13143315323240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13143315323240 is an abundant number, since it is smaller than the sum of its proper divisors (16429144154140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13143315323240 is a wasteful number, since it uses less digits than its factorization.

13143315323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328582883092 (or 328582883088 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 13143315323240 its reverse (4232351334131), we get a palindrome (17375666657371).

The spelling of 13143315323240 in words is "thirteen trillion, one hundred forty-three billion, three hundred fifteen million, three hundred twenty-three thousand, two hundred forty".