42012343441423 has 4 divisors (see below), whose sum is σ = 42016433836608. Its totient is φ = 42008253046240.

The previous prime is 42012343441399. The next prime is 42012343441427. The reversal of 42012343441423 is 32414434321024.

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 42012343441423 - 2²⁹ = 42011806570511 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 (42012343441427) 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, 2045182186 + ... + 2045202727.

It is an arithmetic number, because the mean of its divisors is an integer number (10504108459152).

Almost surely, 2^{42012343441423} is an apocalyptic number.

42012343441423 is a deficient number, since it is larger than the sum of its proper divisors (4090395185).

42012343441423 is a wasteful number, since it uses less digits than its factorization.

42012343441423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090395184.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 42012343441423 its reverse (32414434321024), we get a palindrome (74426777762447).

The spelling of 42012343441423 in words is "forty-two trillion, twelve billion, three hundred forty-three million, four hundred forty-one thousand, four hundred twenty-three".