43451112014423 has 4 divisors (see below), whose sum is σ = 43517046934680. Its totient is φ = 43385177094168.

The previous prime is 43451112014419. The next prime is 43451112014437. The reversal of 43451112014423 is 32441021115434.

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

It is a cyclic number.

It is not a de Polignac number, because 43451112014423 - 2² = 43451112014419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43451112019423) 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, 32967459140 + ... + 32967460457.

It is an arithmetic number, because the mean of its divisors is an integer number (10879261733670).

Almost surely, 2^{43451112014423} is an apocalyptic number.

43451112014423 is a deficient number, since it is larger than the sum of its proper divisors (65934920257).

43451112014423 is an equidigital number, since it uses as much as digits as its factorization.

43451112014423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65934920256.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 43451112014423 its reverse (32441021115434), we get a palindrome (75892133129857).

The spelling of 43451112014423 in words is "forty-three trillion, four hundred fifty-one billion, one hundred twelve million, fourteen thousand, four hundred twenty-three".