210020432020 has 48 divisors (see below), whose sum is σ = 533698986240. Its totient is φ = 67771298304.

The previous prime is 210020431991. The next prime is 210020432023. The reversal of 210020432020 is 20234020012.

It is a junction number, because it is equal to n+sod(n) for n = 210020431985 and 210020432003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020432023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44119560 + ... + 44124319.

It is an arithmetic number, because the mean of its divisors is an integer number (11118728880).

Almost surely, 2^210020432020 is an apocalyptic number.

210020432020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210020432020 is an abundant number, since it is smaller than the sum of its proper divisors (323678554220).

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

210020432020 is a wasteful number, since it uses less digits than its factorization.

210020432020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88243912 (or 88243910 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 210020432020 its reverse (20234020012), we get a palindrome (230254452032).

The spelling of 210020432020 in words is "two hundred ten billion, twenty million, four hundred thirty-two thousand, twenty".