42420330423 has 24 divisors (see below), whose sum is σ = 63558510288. Its totient is φ = 28273411584.

The previous prime is 42420330419. The next prime is 42420330479. The reversal of 42420330423 is 32403302424.

42420330423 is a `hidden beast` number, since 4 + 2 + 4 + 203 + 30 + 423 = 666.

It is not a de Polignac number, because 42420330423 - 2² = 42420330419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42420330413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1116861 + ... + 1154217.

It is an arithmetic number, because the mean of its divisors is an integer number (2648271262).

Almost surely, 2^42420330423 is an apocalyptic number.

42420330423 is a deficient number, since it is larger than the sum of its proper divisors (21138179865).

42420330423 is an equidigital number, since it uses as much as digits as its factorization.

42420330423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42045 (or 42033 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 42420330423 its reverse (32403302424), we get a palindrome (74823632847).

The spelling of 42420330423 in words is "forty-two billion, four hundred twenty million, three hundred thirty thousand, four hundred twenty-three".