21745024533303 has 12 divisors (see below), whose sum is σ = 30599646713208. Its totient is φ = 13733699704560.

The previous prime is 21745024533229. The next prime is 21745024533431. The reversal of 21745024533303 is 30333542054712.

It is a happy number.

It is not a de Polignac number, because 21745024533303 - 2¹⁰ = 21745024532279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21745024533203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10039253088 + ... + 10039255253.

It is an arithmetic number, because the mean of its divisors is an integer number (2549970559434).

Almost surely, 2^{21745024533303} is an apocalyptic number.

21745024533303 is a deficient number, since it is larger than the sum of its proper divisors (8854622179905).

21745024533303 is a wasteful number, since it uses less digits than its factorization.

21745024533303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20078508382 (or 20078508363 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 42.

The spelling of 21745024533303 in words is "twenty-one trillion, seven hundred forty-five billion, twenty-four million, five hundred thirty-three thousand, three hundred three".