13340423121450 has 96 divisors (see below), whose sum is σ = 35062438735296. Its totient is φ = 3345120629760.

The previous prime is 13340423121449. The next prime is 13340423121457. The reversal of 13340423121450 is 5412132404331.

It is a super-2 number, since 2×13340423121450² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13340423121457) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 393949 + ... + 5180351.

It is an arithmetic number, because the mean of its divisors is an integer number (365233736826).

Almost surely, 2^{13340423121450} is an apocalyptic number.

13340423121450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13340423121450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17531219367648).

13340423121450 is an abundant number, since it is smaller than the sum of its proper divisors (21722015613846).

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

13340423121450 is a wasteful number, since it uses less digits than its factorization.

13340423121450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787528 (or 4787523 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 13340423121450 its reverse (5412132404331), we get a palindrome (18752555525781).

The spelling of 13340423121450 in words is "thirteen trillion, three hundred forty billion, four hundred twenty-three million, one hundred twenty-one thousand, four hundred fifty".