1320100200 has 96 divisors (see below), whose sum is σ = 4547030400. Its totient is φ = 352025280.

The previous prime is 1320100163. The next prime is 1320100253. The reversal of 1320100200 is 20010231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116832 + ... + 127631.

It is an arithmetic number, because the mean of its divisors is an integer number (47364900).

Almost surely, 2^1320100200 is an apocalyptic number.

1320100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320100200 is an abundant number, since it is smaller than the sum of its proper divisors (3226930200).

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

1320100200 is a wasteful number, since it uses less digits than its factorization.

1320100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244488 (or 244473 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1320100200 is about 36333.1831801179. The cubic root of 1320100200 is about 1096.9890662295.

Adding to 1320100200 its reverse (20010231), we get a palindrome (1340110431).

The spelling of 1320100200 in words is "one billion, three hundred twenty million, one hundred thousand, two hundred".