13420232242340 has 432 divisors, whose sum is σ = 38691822790656. Its totient is φ = 3852995328000.

The previous prime is 13420232242337. The next prime is 13420232242369. The reversal of 13420232242340 is 4324223202431.

It is a junction number, because it is equal to n+sod(n) for n = 13420232242297 and 13420232242306.

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 143 ways as a sum of consecutive naturals, for example, 404804765 + ... + 404837915.

It is an arithmetic number, because the mean of its divisors is an integer number (89564404608).

Almost surely, 2^{13420232242340} is an apocalyptic number.

13420232242340 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 13420232242340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19345911395328).

13420232242340 is an abundant number, since it is smaller than the sum of its proper divisors (25271590548316).

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

13420232242340 is a wasteful number, since it uses less digits than its factorization.

13420232242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33296 (or 33240 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 13420232242340 its reverse (4324223202431), we get a palindrome (17744455444771).

The spelling of 13420232242340 in words is "thirteen trillion, four hundred twenty billion, two hundred thirty-two million, two hundred forty-two thousand, three hundred forty".