42353432123 has 16 divisors (see below), whose sum is σ = 43143238656. Its totient is φ = 41569476480.

The previous prime is 42353432117. The next prime is 42353432153. The reversal of 42353432123 is 32123435324.

It is a cyclic number.

It is not a de Polignac number, because 42353432123 - 2¹² = 42353428027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42353432123.

It is not an unprimeable number, because it can be changed into a prime (42353432153) 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, 17307086 + ... + 17309532.

It is an arithmetic number, because the mean of its divisors is an integer number (2696452416).

Almost surely, 2^42353432123 is an apocalyptic number.

42353432123 is a deficient number, since it is larger than the sum of its proper divisors (789806533).

42353432123 is a wasteful number, since it uses less digits than its factorization.

42353432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514.

The product of its digits is 51840, while the sum is 32.

Adding to 42353432123 its reverse (32123435324), we get a palindrome (74476867447).

The spelling of 42353432123 in words is "forty-two billion, three hundred fifty-three million, four hundred thirty-two thousand, one hundred twenty-three".