43021330023 has 12 divisors (see below), whose sum is σ = 66726961080. Its totient is φ = 24583617072.

The previous prime is 43021330003. The next prime is 43021330039. The reversal of 43021330023 is 32003312034.

It is not a de Polignac number, because 43021330023 - 2⁶ = 43021329959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43021330003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146330908 + ... + 146331201.

It is an arithmetic number, because the mean of its divisors is an integer number (5560580090).

Almost surely, 2^43021330023 is an apocalyptic number.

43021330023 is a deficient number, since it is larger than the sum of its proper divisors (23705631057).

43021330023 is a wasteful number, since it uses less digits than its factorization.

43021330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292662126 (or 292662119 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 43021330023 its reverse (32003312034), we get a palindrome (75024642057).

The spelling of 43021330023 in words is "forty-three billion, twenty-one million, three hundred thirty thousand, twenty-three".