320020200100 has 18 divisors (see below), whose sum is σ = 694443834434. Its totient is φ = 128008080000.

The previous prime is 320020200083. The next prime is 320020200103. The reversal of 320020200100 is 1002020023.

It can be written as a sum of positive squares in 3 ways, for example, as 5586366564 + 314433833536 = 74742^2 + 560744^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (320020200103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1600100901 + ... + 1600101100.

Almost surely, 2^320020200100 is an apocalyptic number.

It is an amenable number.

320020200100 is an abundant number, since it is smaller than the sum of its proper divisors (374423634334).

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

320020200100 is a wasteful number, since it uses less digits than its factorization.

320020200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200202015 (or 3200202008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 320020200100 its reverse (1002020023), we get a palindrome (321022220123).

The spelling of 320020200100 in words is "three hundred twenty billion, twenty million, two hundred thousand, one hundred".