21450030235541 has 16 divisors (see below), whose sum is σ = 22231728949248. Its totient is φ = 20673953190000.

The previous prime is 21450030235523. The next prime is 21450030235553. The reversal of 21450030235541 is 14553203005412.

It is a cyclic number.

It is not a de Polignac number, because 21450030235541 - 2²² = 21450026041237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21450030235561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121630070 + ... + 121806296.

It is an arithmetic number, because the mean of its divisors is an integer number (1389483059328).

Almost surely, 2^{21450030235541} is an apocalyptic number.

It is an amenable number.

21450030235541 is a deficient number, since it is larger than the sum of its proper divisors (781698713707).

21450030235541 is a wasteful number, since it uses less digits than its factorization.

21450030235541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192152.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 21450030235541 in words is "twenty-one trillion, four hundred fifty billion, thirty million, two hundred thirty-five thousand, five hundred forty-one".