43312443213 has 16 divisors (see below), whose sum is σ = 63246335040. Its totient is φ = 26202050304.

The previous prime is 43312443191. The next prime is 43312443257. The reversal of 43312443213 is 31234421334.

It is a happy number.

It is not a de Polignac number, because 43312443213 - 2¹³ = 43312435021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43312443313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9409356 + ... + 9413957.

It is an arithmetic number, because the mean of its divisors is an integer number (3952895940).

Almost surely, 2^43312443213 is an apocalyptic number.

It is an amenable number.

43312443213 is a deficient number, since it is larger than the sum of its proper divisors (19933891827).

43312443213 is a wasteful number, since it uses less digits than its factorization.

43312443213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823388.

The product of its digits is 20736, while the sum is 30.

Adding to 43312443213 its reverse (31234421334), we get a palindrome (74546864547).

The spelling of 43312443213 in words is "forty-three billion, three hundred twelve million, four hundred forty-three thousand, two hundred thirteen".