13056544231340 has 96 divisors (see below), whose sum is σ = 28351702780800. Its totient is φ = 5046847948800.

The previous prime is 13056544231307. The next prime is 13056544231343. The reversal of 13056544231340 is 4313244565031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13056544231343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930675446 + ... + 930689474.

It is an arithmetic number, because the mean of its divisors is an integer number (295330237300).

Almost surely, 2^{13056544231340} is an apocalyptic number.

13056544231340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13056544231340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14175851390400).

13056544231340 is an abundant number, since it is smaller than the sum of its proper divisors (15295158549460).

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

13056544231340 is a wasteful number, since it uses less digits than its factorization.

13056544231340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22555 (or 22553 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 13056544231340 its reverse (4313244565031), we get a palindrome (17369788796371).

The spelling of 13056544231340 in words is "thirteen trillion, fifty-six billion, five hundred forty-four million, two hundred thirty-one thousand, three hundred forty".