210434143420 has 48 divisors (see below), whose sum is σ = 443534259168. Its totient is φ = 83864954880.

The previous prime is 210434143399. The next prime is 210434143421. The reversal of 210434143420 is 24341434012.

210434143420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210434143421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10308744 + ... + 10329136.

It is an arithmetic number, because the mean of its divisors is an integer number (9240297066).

Almost surely, 2^210434143420 is an apocalyptic number.

210434143420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210434143420 is an abundant number, since it is smaller than the sum of its proper divisors (233100115748).

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

210434143420 is a wasteful number, since it uses less digits than its factorization.

210434143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22270 (or 22268 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 210434143420 its reverse (24341434012), we get a palindrome (234775577432).

The spelling of 210434143420 in words is "two hundred ten billion, four hundred thirty-four million, one hundred forty-three thousand, four hundred twenty".