21324133140330 has 64 divisors (see below), whose sum is σ = 51206430877056. Its totient is φ = 5683268448000.

The previous prime is 21324133140329. The next prime is 21324133140391. The reversal of 21324133140330 is 3304133142312.

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

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, 461828145 + ... + 461874315.

It is an arithmetic number, because the mean of its divisors is an integer number (800100482454).

Almost surely, 2^{21324133140330} is an apocalyptic number.

21324133140330 is an abundant number, since it is smaller than the sum of its proper divisors (29882297736726).

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

21324133140330 is a wasteful number, since it uses less digits than its factorization.

21324133140330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54423.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 21324133140330 its reverse (3304133142312), we get a palindrome (24628266282642).

The spelling of 21324133140330 in words is "twenty-one trillion, three hundred twenty-four billion, one hundred thirty-three million, one hundred forty thousand, three hundred thirty".