43314551321 has 16 divisors (see below), whose sum is σ = 45783429120. Its totient is φ = 40914009360.

The previous prime is 43314551299. The next prime is 43314551327. The reversal of 43314551321 is 12315541334.

It is a cyclic number.

It is not a de Polignac number, because 43314551321 - 2¹⁰ = 43314550297 is a prime.

It is a super-2 number, since 2×43314551321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43314551327) 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, 2046290 + ... + 2067348.

It is an arithmetic number, because the mean of its divisors is an integer number (2861464320).

Almost surely, 2^43314551321 is an apocalyptic number.

It is an amenable number.

43314551321 is a deficient number, since it is larger than the sum of its proper divisors (2468877799).

43314551321 is a wasteful number, since it uses less digits than its factorization.

43314551321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22676.

The product of its digits is 21600, while the sum is 32.

The spelling of 43314551321 in words is "forty-three billion, three hundred fourteen million, five hundred fifty-one thousand, three hundred twenty-one".