1423444043123 has 4 divisors (see below), whose sum is σ = 1424335368480. Its totient is φ = 1422552717768.

The previous prime is 1423444043117. The next prime is 1423444043159. The reversal of 1423444043123 is 3213404443241.

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 1423444043123 - 2²⁴ = 1423427265907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423444063123) 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, 445660283 + ... + 445663476.

It is an arithmetic number, because the mean of its divisors is an integer number (356083842120).

Almost surely, 2^{1423444043123} is an apocalyptic number.

1423444043123 is a deficient number, since it is larger than the sum of its proper divisors (891325357).

1423444043123 is an equidigital number, since it uses as much as digits as its factorization.

1423444043123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891325356.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 1423444043123 its reverse (3213404443241), we get a palindrome (4636848486364).

The spelling of 1423444043123 in words is "one trillion, four hundred twenty-three billion, four hundred forty-four million, forty-three thousand, one hundred twenty-three".