43404423313 has 4 divisors (see below), whose sum is σ = 43561118260. Its totient is φ = 43247728368.

The previous prime is 43404423301. The next prime is 43404423323. The reversal of 43404423313 is 31332440434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3527528449 + 39876894864 = 59393^2 + 199692^2 .

It is a cyclic number.

It is not a de Polignac number, because 43404423313 - 2⁵ = 43404423281 is a prime.

It is a super-3 number, since 3×43404423313³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43404423323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78347058 + ... + 78347611.

It is an arithmetic number, because the mean of its divisors is an integer number (10890279565).

Almost surely, 2^43404423313 is an apocalyptic number.

It is an amenable number.

43404423313 is a deficient number, since it is larger than the sum of its proper divisors (156694947).

43404423313 is a wasteful number, since it uses less digits than its factorization.

43404423313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156694946.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 43404423313 its reverse (31332440434), we get a palindrome (74736863747).

The spelling of 43404423313 in words is "forty-three billion, four hundred four million, four hundred twenty-three thousand, three hundred thirteen".