42143440123 has 8 divisors (see below), whose sum is σ = 42797417040. Its totient is φ = 41490197760.

The previous prime is 42143440051. The next prime is 42143440177. The reversal of 42143440123 is 32104434124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42143440123 - 2¹⁷ = 42143309051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42143440091 and 42143440100.

It is not an unprimeable number, because it can be changed into a prime (42143440193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67438 + ... + 298051.

It is an arithmetic number, because the mean of its divisors is an integer number (5349677130).

Almost surely, 2^42143440123 is an apocalyptic number.

42143440123 is a deficient number, since it is larger than the sum of its proper divisors (653976917).

42143440123 is a wasteful number, since it uses less digits than its factorization.

42143440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367277.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42143440123 its reverse (32104434124), we get a palindrome (74247874247).

The spelling of 42143440123 in words is "forty-two billion, one hundred forty-three million, four hundred forty thousand, one hundred twenty-three".