43040053323 has 24 divisors (see below), whose sum is σ = 65074097088. Its totient is φ = 28425189384.

The previous prime is 43040053313. The next prime is 43040053391. The reversal of 43040053323 is 32335004034.

It is a happy number.

It is not a de Polignac number, because 43040053323 - 2⁵ = 43040053291 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (43040053313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801661 + ... + 853662.

It is an arithmetic number, because the mean of its divisors is an integer number (2711420712).

Almost surely, 2^43040053323 is an apocalyptic number.

43040053323 is a deficient number, since it is larger than the sum of its proper divisors (22034043765).

43040053323 is a wasteful number, since it uses less digits than its factorization.

43040053323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655445 (or 1655433 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 43040053323 its reverse (32335004034), we get a palindrome (75375057357).

The spelling of 43040053323 in words is "forty-three billion, forty million, fifty-three thousand, three hundred twenty-three".