43133343221 has 16 divisors (see below), whose sum is σ = 46649803200. Its totient is φ = 39742420608.

The previous prime is 43133343217. The next prime is 43133343233. The reversal of 43133343221 is 12234333134.

It is a cyclic number.

It is not a de Polignac number, because 43133343221 - 2² = 43133343217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43133343241) 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, 1907246 + ... + 1929728.

It is an arithmetic number, because the mean of its divisors is an integer number (2915612700).

Almost surely, 2^43133343221 is an apocalyptic number.

It is an amenable number.

43133343221 is a deficient number, since it is larger than the sum of its proper divisors (3516459979).

43133343221 is a wasteful number, since it uses less digits than its factorization.

43133343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25268.

The product of its digits is 15552, while the sum is 29.

Adding to 43133343221 its reverse (12234333134), we get a palindrome (55367676355).

The spelling of 43133343221 in words is "forty-three billion, one hundred thirty-three million, three hundred forty-three thousand, two hundred twenty-one".