21450133054130 has 128 divisors (see below), whose sum is σ = 45508896921600. Its totient is φ = 7194940300800.

The previous prime is 21450133054127. The next prime is 21450133054139. The reversal of 21450133054130 is 3145033105412.

It is not an unprimeable number, because it can be changed into a prime (21450133054139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42853241 + ... + 43350899.

It is an arithmetic number, because the mean of its divisors is an integer number (355538257200).

Almost surely, 2^{21450133054130} is an apocalyptic number.

21450133054130 is an abundant number, since it is smaller than the sum of its proper divisors (24058763867470).

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

21450133054130 is a wasteful number, since it uses less digits than its factorization.

21450133054130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498240.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 21450133054130 its reverse (3145033105412), we get a palindrome (24595166159542).

The spelling of 21450133054130 in words is "twenty-one trillion, four hundred fifty billion, one hundred thirty-three million, fifty-four thousand, one hundred thirty".