220445531023 has 2 divisors, whose sum is σ = 220445531024. Its totient is φ = 220445531022.

The previous prime is 220445531021. The next prime is 220445531039. The reversal of 220445531023 is 320135544022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220445531023 - 2¹ = 220445531021 is a prime.

Together with 220445531021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220445531021) 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 as a sum of consecutive naturals, namely, 110222765511 + 110222765512.

It is an arithmetic number, because the mean of its divisors is an integer number (110222765512).

Almost surely, 2^220445531023 is an apocalyptic number.

220445531023 is a deficient number, since it is larger than the sum of its proper divisors (1).

220445531023 is an equidigital number, since it uses as much as digits as its factorization.

220445531023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 220445531023 in words is "two hundred twenty billion, four hundred forty-five million, five hundred thirty-one thousand, twenty-three".