42430128903 has 24 divisors (see below), whose sum is σ = 61478668368. Its totient is φ = 28198824192.

The previous prime is 42430128889. The next prime is 42430128907. The reversal of 42430128903 is 30982103424.

It is not a de Polignac number, because 42430128903 - 2⁴ = 42430128887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42430128907) 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, 10155951 + ... + 10160127.

It is an arithmetic number, because the mean of its divisors is an integer number (2561611182).

Almost surely, 2^42430128903 is an apocalyptic number.

42430128903 is a deficient number, since it is larger than the sum of its proper divisors (19048539465).

42430128903 is a wasteful number, since it uses less digits than its factorization.

42430128903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423 (or 7420 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 42430128903 in words is "forty-two billion, four hundred thirty million, one hundred twenty-eight thousand, nine hundred three".