43212340503 has 24 divisors (see below), whose sum is σ = 64580224800. Its totient is φ = 27810506304.

The previous prime is 43212340481. The next prime is 43212340517. The reversal of 43212340503 is 30504321234.

43212340503 is a `hidden beast` number, since 4 + 32 + 123 + 4 + 0 + 503 = 666.

It is not a de Polignac number, because 43212340503 - 2⁶ = 43212340439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43212340543) 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, 3126933 + ... + 3140721.

It is an arithmetic number, because the mean of its divisors is an integer number (2690842700).

Almost surely, 2^43212340503 is an apocalyptic number.

43212340503 is a deficient number, since it is larger than the sum of its proper divisors (21367884297).

43212340503 is a wasteful number, since it uses less digits than its factorization.

43212340503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25831 (or 25828 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 43212340503 its reverse (30504321234), we get a palindrome (73716661737).

The spelling of 43212340503 in words is "forty-three billion, two hundred twelve million, three hundred forty thousand, five hundred three".