43313204121 has 16 divisors (see below), whose sum is σ = 63112953600. Its totient is φ = 26203789520.

The previous prime is 43313204113. The next prime is 43313204149. The reversal of 43313204121 is 12140231334.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43313204121 - 2³ = 43313204113 is a prime.

It is a super-3 number, since 3×43313204121³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 43313204091 and 43313204100.

It is not an unprimeable number, because it can be changed into a prime (43313204191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147071 + ... + 1184228.

It is an arithmetic number, because the mean of its divisors is an integer number (3944559600).

Almost surely, 2^43313204121 is an apocalyptic number.

It is an amenable number.

43313204121 is a deficient number, since it is larger than the sum of its proper divisors (19799749479).

43313204121 is a wasteful number, since it uses less digits than its factorization.

43313204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331876.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 43313204121 its reverse (12140231334), we get a palindrome (55453435455).

The spelling of 43313204121 in words is "forty-three billion, three hundred thirteen million, two hundred four thousand, one hundred twenty-one".