13341021403440 has 160 divisors (see below), whose sum is σ = 41646727296000. Its totient is φ = 3532767575040.

The previous prime is 13341021403421. The next prime is 13341021403471. The reversal of 13341021403440 is 4430412014331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13341021403398 and 13341021403407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24035445 + ... + 24584235.

It is an arithmetic number, because the mean of its divisors is an integer number (260292045600).

Almost surely, 2^{13341021403440} is an apocalyptic number.

13341021403440 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 13341021403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20823363648000).

13341021403440 is an abundant number, since it is smaller than the sum of its proper divisors (28305705892560).

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

13341021403440 is a wasteful number, since it uses less digits than its factorization.

13341021403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549515 (or 549509 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 13341021403440 its reverse (4430412014331), we get a palindrome (17771433417771).

The spelling of 13341021403440 in words is "thirteen trillion, three hundred forty-one billion, twenty-one million, four hundred three thousand, four hundred forty".