13321030021400 has 48 divisors (see below), whose sum is σ = 31255536087600. Its totient is φ = 5279527486080.

The previous prime is 13321030021289. The next prime is 13321030021417. The reversal of 13321030021400 is 412003012331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305506412 + ... + 305550011.

It is an arithmetic number, because the mean of its divisors is an integer number (651157001825).

Almost surely, 2^{13321030021400} is an apocalyptic number.

13321030021400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321030021400 is an abundant number, since it is smaller than the sum of its proper divisors (17934506066200).

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

13321030021400 is a wasteful number, since it uses less digits than its factorization.

13321030021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611056548 (or 611056539 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13321030021400 its reverse (412003012331), we get a palindrome (13733033033731).

The spelling of 13321030021400 in words is "thirteen trillion, three hundred twenty-one billion, thirty million, twenty-one thousand, four hundred".