21030554543303 has 8 divisors (see below), whose sum is σ = 21072586552416. Its totient is φ = 20988523415200.

The previous prime is 21030554543281. The next prime is 21030554543353. The reversal of 21030554543303 is 30334545503012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21030554543303 - 2⁶ = 21030554543239 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 (21030554543353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69676373 + ... + 69977553.

It is an arithmetic number, because the mean of its divisors is an integer number (2634073319052).

Almost surely, 2^{21030554543303} is an apocalyptic number.

21030554543303 is a deficient number, since it is larger than the sum of its proper divisors (42032009113).

21030554543303 is a wasteful number, since it uses less digits than its factorization.

21030554543303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440505.

The product of its (nonzero) digits is 324000, while the sum is 38.

The spelling of 21030554543303 in words is "twenty-one trillion, thirty billion, five hundred fifty-four million, five hundred forty-three thousand, three hundred three".