42031432120 has 32 divisors (see below), whose sum is σ = 94675071600. Its totient is φ = 16794021888.

The previous prime is 42031432109. The next prime is 42031432129. The reversal of 42031432120 is 2123413024.

It is a junction number, because it is equal to n+sod(n) for n = 42031432091 and 42031432100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031432129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542985 + ... + 615544.

Almost surely, 2^42031432120 is an apocalyptic number.

42031432120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42031432120 is an abundant number, since it is smaller than the sum of its proper divisors (52643639480).

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

42031432120 is a wasteful number, since it uses less digits than its factorization.

42031432120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159447 (or 1159443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42031432120 its reverse (2123413024), we get a palindrome (44154845144).

The spelling of 42031432120 in words is "forty-two billion, thirty-one million, four hundred thirty-two thousand, one hundred twenty".