20042532120 has 128 divisors (see below), whose sum is σ = 67568256000. Its totient is φ = 4719035904.

The previous prime is 20042532101. The next prime is 20042532121. The reversal of 20042532120 is 2123524002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042532121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243420 + ... + 315179.

It is an arithmetic number, because the mean of its divisors is an integer number (527877000).

Almost surely, 2^20042532120 is an apocalyptic number.

20042532120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042532120 is an abundant number, since it is smaller than the sum of its proper divisors (47525723880).

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

20042532120 is a wasteful number, since it uses less digits than its factorization.

20042532120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558649 (or 558645 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The spelling of 20042532120 in words is "twenty billion, forty-two million, five hundred thirty-two thousand, one hundred twenty".