201224443023 has 20 divisors (see below), whose sum is σ = 300645753408. Its totient is φ = 134126772480.

The previous prime is 201224443019. The next prime is 201224443033. The reversal of 201224443023 is 320344422102.

201224443023 is a `hidden beast` number, since 2 + 0 + 1 + 224 + 4 + 430 + 2 + 3 = 666.

It is not a de Polignac number, because 201224443023 - 2² = 201224443019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201224443003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 273538 + ... + 690848.

Almost surely, 2^201224443023 is an apocalyptic number.

201224443023 is a deficient number, since it is larger than the sum of its proper divisors (99421310385).

201224443023 is an equidigital number, since it uses as much as digits as its factorization.

201224443023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423276 (or 423267 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201224443023 its reverse (320344422102), we get a palindrome (521568865125).

The spelling of 201224443023 in words is "two hundred one billion, two hundred twenty-four million, four hundred forty-three thousand, twenty-three".