43300402121 has 4 divisors (see below), whose sum is σ = 43539631044. Its totient is φ = 43061173200.

The previous prime is 43300402091. The next prime is 43300402133. The reversal of 43300402121 is 12120400334.

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 343694521 + 42956707600 = 18539^2 + 207260^2 .

It is a cyclic number.

It is not a de Polignac number, because 43300402121 - 2¹⁸ = 43300139977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43300402093 and 43300402102.

It is not an unprimeable number, because it can be changed into a prime (43300402141) 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 3 ways as a sum of consecutive naturals, for example, 119614190 + ... + 119614551.

It is an arithmetic number, because the mean of its divisors is an integer number (10884907761).

Almost surely, 2^43300402121 is an apocalyptic number.

It is an amenable number.

43300402121 is a deficient number, since it is larger than the sum of its proper divisors (239228923).

43300402121 is a wasteful number, since it uses less digits than its factorization.

43300402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239228922.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 43300402121 its reverse (12120400334), we get a palindrome (55420802455).

The spelling of 43300402121 in words is "forty-three billion, three hundred million, four hundred two thousand, one hundred twenty-one".