42031430420 has 48 divisors (see below), whose sum is σ = 101854841088. Its totient is φ = 14270860800.

The previous prime is 42031430381. The next prime is 42031430443. The reversal of 42031430420 is 2403413024.

It is a super-2 number, since 2×42031430420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442981 + ... + 1471820.

It is an arithmetic number, because the mean of its divisors is an integer number (2121975856).

Almost surely, 2^42031430420 is an apocalyptic number.

It is an amenable number.

42031430420 is an abundant number, since it is smaller than the sum of its proper divisors (59823410668).

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

42031430420 is a wasteful number, since it uses less digits than its factorization.

42031430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914920 (or 2914918 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42031430420 its reverse (2403413024), we get a palindrome (44434843444).

The spelling of 42031430420 in words is "forty-two billion, thirty-one million, four hundred thirty thousand, four hundred twenty".