4320420202100 has 18 divisors (see below), whose sum is σ = 9375311838774. Its totient is φ = 1728168080800.

The previous prime is 4320420202067. The next prime is 4320420202139. The reversal of 4320420202100 is 12020240234.

It can be written as a sum of positive squares in 3 ways, for example, as 366033424 + 4320054168676 = 19132^2 + 2078474^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21602100911 + ... + 21602101110.

Almost surely, 2^{4320420202100} is an apocalyptic number.

It is an amenable number.

4320420202100 is an abundant number, since it is smaller than the sum of its proper divisors (5054891636674).

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

4320420202100 is a wasteful number, since it uses less digits than its factorization.

4320420202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204202035 (or 43204202028 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 4320420202100 its reverse (12020240234), we get a palindrome (4332440442334).

The spelling of 4320420202100 in words is "four trillion, three hundred twenty billion, four hundred twenty million, two hundred two thousand, one hundred".