21250443325423 has 8 divisors (see below), whose sum is σ = 22889667156048. Its totient is φ = 19611872972544.

The previous prime is 21250443325327. The next prime is 21250443325471. The reversal of 21250443325423 is 32452334405212.

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 21250443325423 - 2³³ = 21241853390831 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 (21250443325483) 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 7 ways as a sum of consecutive naturals, for example, 163301890 + ... + 163431967.

It is an arithmetic number, because the mean of its divisors is an integer number (2861208394506).

Almost surely, 2^{21250443325423} is an apocalyptic number.

21250443325423 is a deficient number, since it is larger than the sum of its proper divisors (1639223830625).

21250443325423 is a wasteful number, since it uses less digits than its factorization.

21250443325423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326738873.

The product of its (nonzero) digits is 691200, while the sum is 40.

The spelling of 21250443325423 in words is "twenty-one trillion, two hundred fifty billion, four hundred forty-three million, three hundred twenty-five thousand, four hundred twenty-three".