42123023430 has 16 divisors (see below), whose sum is σ = 101095256304. Its totient is φ = 11232806240.

The previous prime is 42123023413. The next prime is 42123023443. The reversal of 42123023430 is 3432032124.

42123023430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42123023430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702050361 + ... + 702050420.

It is an arithmetic number, because the mean of its divisors is an integer number (6318453519).

Almost surely, 2^42123023430 is an apocalyptic number.

42123023430 is an abundant number, since it is smaller than the sum of its proper divisors (58972232874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42123023430 is a wasteful number, since it uses less digits than its factorization.

42123023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404100791.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 42123023430 its reverse (3432032124), we get a palindrome (45555055554).

The spelling of 42123023430 in words is "forty-two billion, one hundred twenty-three million, twenty-three thousand, four hundred thirty".