43220344312 has 16 divisors (see below), whose sum is σ = 81392027400. Its totient is φ = 21515803680.

The previous prime is 43220344309. The next prime is 43220344327. The reversal of 43220344312 is 21344302234.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11794114 + ... + 11797777.

Almost surely, 2^43220344312 is an apocalyptic number.

It is an amenable number.

43220344312 is a deficient number, since it is larger than the sum of its proper divisors (38171683088).

43220344312 is a wasteful number, since it uses less digits than its factorization.

43220344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23592126 (or 23592122 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43220344312 its reverse (21344302234), we get a palindrome (64564646546).

The spelling of 43220344312 in words is "forty-three billion, two hundred twenty million, three hundred forty-four thousand, three hundred twelve".