13240331322400 has 576 divisors, whose sum is σ = 40095673712640. Its totient is φ = 4157441740800.

The previous prime is 13240331322391. The next prime is 13240331322409. The reversal of 13240331322400 is 422313304231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13240331322391) and next prime (13240331322409).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13240331322409) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6493540581 + ... + 6493542619.

It is an arithmetic number, because the mean of its divisors is an integer number (69610544640).

Almost surely, 2^{13240331322400} is an apocalyptic number.

13240331322400 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 13240331322400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20047836856320).

13240331322400 is an abundant number, since it is smaller than the sum of its proper divisors (26855342390240).

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

13240331322400 is a wasteful number, since it uses less digits than its factorization.

13240331322400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13240331322400 its reverse (422313304231), we get a palindrome (13662644626631).

The spelling of 13240331322400 in words is "thirteen trillion, two hundred forty billion, three hundred thirty-one million, three hundred twenty-two thousand, four hundred".