43220506243 has 4 divisors (see below), whose sum is σ = 43446791808. Its totient is φ = 42994220680.

The previous prime is 43220506183. The next prime is 43220506313. The reversal of 43220506243 is 34260502234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43220506243 - 2²⁹ = 42683635331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43220500243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113142496 + ... + 113142877.

It is an arithmetic number, because the mean of its divisors is an integer number (10861697952).

Almost surely, 2^43220506243 is an apocalyptic number.

43220506243 is a deficient number, since it is larger than the sum of its proper divisors (226285565).

43220506243 is a wasteful number, since it uses less digits than its factorization.

43220506243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226285564.

The product of its (nonzero) digits is 34560, while the sum is 31.

The spelling of 43220506243 in words is "forty-three billion, two hundred twenty million, five hundred six thousand, two hundred forty-three".