43213133431 has 16 divisors (see below), whose sum is σ = 47140853760. Its totient is φ = 39371960160.

The previous prime is 43213133429. The next prime is 43213133441. The reversal of 43213133431 is 13433131234.

It is not a de Polignac number, because 43213133431 - 2¹ = 43213133429 is a prime.

It is a super-4 number, since 4×43213133431⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 43213133431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43213133441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6293106 + ... + 6299968.

It is an arithmetic number, because the mean of its divisors is an integer number (2946303360).

Almost surely, 2^43213133431 is an apocalyptic number.

43213133431 is a deficient number, since it is larger than the sum of its proper divisors (3927720329).

43213133431 is a wasteful number, since it uses less digits than its factorization.

43213133431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13086.

The product of its digits is 7776, while the sum is 28.

Adding to 43213133431 its reverse (13433131234), we get a palindrome (56646264665).

The spelling of 43213133431 in words is "forty-three billion, two hundred thirteen million, one hundred thirty-three thousand, four hundred thirty-one".