109843951423 has 4 divisors (see below), whose sum is σ = 109943000280. Its totient is φ = 109744902568.

The previous prime is 109843951421. The next prime is 109843951429. The reversal of 109843951423 is 324159348901.

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 109843951423 - 2¹ = 109843951421 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 (109843951421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49522765 + ... + 49524982.

It is an arithmetic number, because the mean of its divisors is an integer number (27485750070).

Almost surely, 2^109843951423 is an apocalyptic number.

109843951423 is a deficient number, since it is larger than the sum of its proper divisors (99048857).

109843951423 is an equidigital number, since it uses as much as digits as its factorization.

109843951423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99048856.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 109843951423 in words is "one hundred nine billion, eight hundred forty-three million, nine hundred fifty-one thousand, four hundred twenty-three".