42420144343 has 16 divisors (see below), whose sum is σ = 43923179520. Its totient is φ = 40925757600.

The previous prime is 42420144317. The next prime is 42420144367. The reversal of 42420144343 is 34344102424.

It is a cyclic number.

It is not a de Polignac number, because 42420144343 - 2¹³ = 42420136151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42420144043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18119353 + ... + 18121693.

It is an arithmetic number, because the mean of its divisors is an integer number (2745198720).

Almost surely, 2^42420144343 is an apocalyptic number.

42420144343 is a deficient number, since it is larger than the sum of its proper divisors (1503035177).

42420144343 is a wasteful number, since it uses less digits than its factorization.

42420144343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42420144343 its reverse (34344102424), we get a palindrome (76764246767).

The spelling of 42420144343 in words is "forty-two billion, four hundred twenty million, one hundred forty-four thousand, three hundred forty-three".