21325122055143 has 48 divisors (see below), whose sum is σ = 31851360253440. Its totient is φ = 13738192386048.

The previous prime is 21325122055117. The next prime is 21325122055183. The reversal of 21325122055143 is 34155022152312.

21325122055143 is a `hidden beast` number, since 2 + 1 + 32 + 5 + 12 + 20 + 551 + 43 = 666.

It is not a de Polignac number, because 21325122055143 - 2⁶ = 21325122055079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21325122055098 and 21325122055107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21325122055183) 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 47 ways as a sum of consecutive naturals, for example, 116966071 + ... + 117148247.

It is an arithmetic number, because the mean of its divisors is an integer number (663570005280).

Almost surely, 2^{21325122055143} is an apocalyptic number.

21325122055143 is a deficient number, since it is larger than the sum of its proper divisors (10526238198297).

21325122055143 is a wasteful number, since it uses less digits than its factorization.

21325122055143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184616 (or 184613 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 21325122055143 in words is "twenty-one trillion, three hundred twenty-five billion, one hundred twenty-two million, fifty-five thousand, one hundred forty-three".