210202432243420 has 48 divisors (see below), whose sum is σ = 442021205142720. Its totient is φ = 83967462273024.

The previous prime is 210202432243403. The next prime is 210202432243493. The reversal of 210202432243420 is 24342234202012.

It is a happy number.

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, 105346462 + ... + 107323258.

It is an arithmetic number, because the mean of its divisors is an integer number (9208775107140).

Almost surely, 2^{210202432243420} is an apocalyptic number.

210202432243420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202432243420 is an abundant number, since it is smaller than the sum of its proper divisors (231818772899300).

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

210202432243420 is a wasteful number, since it uses less digits than its factorization.

210202432243420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983982 (or 1983980 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 210202432243420 its reverse (24342234202012), we get a palindrome (234544666445432).

The spelling of 210202432243420 in words is "two hundred ten trillion, two hundred two billion, four hundred thirty-two million, two hundred forty-three thousand, four hundred twenty".