43423011340421 has 8 divisors (see below), whose sum is σ = 43747620789600. Its totient is φ = 43098576372720.

The previous prime is 43423011340417. The next prime is 43423011340459. The reversal of 43423011340421 is 12404311032434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43423011340421 - 2² = 43423011340417 is a prime.

It is a super-2 number, since 2×43423011340421² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43423011340321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43120751 + ... + 44116268.

It is an arithmetic number, because the mean of its divisors is an integer number (5468452598700).

Almost surely, 2^{43423011340421} is an apocalyptic number.

It is an amenable number.

43423011340421 is a deficient number, since it is larger than the sum of its proper divisors (324609449179).

43423011340421 is a wasteful number, since it uses less digits than its factorization.

43423011340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87240739.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 43423011340421 its reverse (12404311032434), we get a palindrome (55827322372855).

The spelling of 43423011340421 in words is "forty-three trillion, four hundred twenty-three billion, eleven million, three hundred forty thousand, four hundred twenty-one".