13155401104320 has 112 divisors (see below), whose sum is σ = 41787733369248. Its totient is φ = 3506483036160.

The previous prime is 13155401104297. The next prime is 13155401104343. The reversal of 13155401104320 is 2340110455131.

It is an interprime number because it is at equal distance from previous prime (13155401104297) and next prime (13155401104343).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096089 + ... + 5245208.

Almost surely, 2^{13155401104320} is an apocalyptic number.

13155401104320 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 13155401104320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20893866684624).

13155401104320 is an abundant number, since it is smaller than the sum of its proper divisors (28632332264928).

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

13155401104320 is a wasteful number, since it uses less digits than its factorization.

13155401104320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343478 (or 6343468 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 13155401104320 its reverse (2340110455131), we get a palindrome (15495511559451).

The spelling of 13155401104320 in words is "thirteen trillion, one hundred fifty-five billion, four hundred one million, one hundred four thousand, three hundred twenty".