21232522043 has 2 divisors, whose sum is σ = 21232522044. Its totient is φ = 21232522042.

The previous prime is 21232522037. The next prime is 21232522061. The reversal of 21232522043 is 34022523212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21232522043 - 2¹⁰ = 21232521019 is a prime.

It is not a weakly prime, because it can be changed into another prime (21232522033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616261021 + 10616261022.

It is an arithmetic number, because the mean of its divisors is an integer number (10616261022).

Almost surely, 2^21232522043 is an apocalyptic number.

21232522043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232522043 is an equidigital number, since it uses as much as digits as its factorization.

21232522043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 21232522043 in words is "twenty-one billion, two hundred thirty-two million, five hundred twenty-two thousand, forty-three".