43123321413 has 12 divisors (see below), whose sum is σ = 62294843520. Its totient is φ = 28746295656.

The previous prime is 43123321399. The next prime is 43123321457. The reversal of 43123321413 is 31412332134.

It is a happy number.

43123321413 is a `hidden beast` number, since 4 + 312 + 332 + 1 + 4 + 13 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-43123321413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123321313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106923 + ... + 312536.

It is an arithmetic number, because the mean of its divisors is an integer number (5191236960).

Almost surely, 2^43123321413 is an apocalyptic number.

It is an amenable number.

43123321413 is a deficient number, since it is larger than the sum of its proper divisors (19171522107).

43123321413 is a wasteful number, since it uses less digits than its factorization.

43123321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430888 (or 430885 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 43123321413 its reverse (31412332134), we get a palindrome (74535653547).

The spelling of 43123321413 in words is "forty-three billion, one hundred twenty-three million, three hundred twenty-one thousand, four hundred thirteen".