42431233020 has 48 divisors (see below), whose sum is σ = 129608131968. Its totient is φ = 10286359360.

The previous prime is 42431232979. The next prime is 42431233049. The reversal of 42431233020 is 2033213424.

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, 32144214 + ... + 32145533.

It is an arithmetic number, because the mean of its divisors is an integer number (2700169416).

Almost surely, 2^42431233020 is an apocalyptic number.

It is an amenable number.

42431233020 is an abundant number, since it is smaller than the sum of its proper divisors (87176898948).

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

42431233020 is a wasteful number, since it uses less digits than its factorization.

42431233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64289770 (or 64289768 counting only the distinct ones).

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

Adding to 42431233020 its reverse (2033213424), we get a palindrome (44464446444).

The spelling of 42431233020 in words is "forty-two billion, four hundred thirty-one million, two hundred thirty-three thousand, twenty".