1331312200 has 24 divisors (see below), whose sum is σ = 3095301330. Its totient is φ = 532524800.

The previous prime is 1331312179. The next prime is 1331312201. The reversal of 1331312200 is 22131331.

It can be written as a sum of positive squares in 3 ways, for example, as 891739044 + 439573156 = 29862^2 + 20966^2 .

It is not an unprimeable number, because it can be changed into a prime (1331312201) 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, 3328081 + ... + 3328480.

Almost surely, 2^1331312200 is an apocalyptic number.

1331312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331312200 is an abundant number, since it is smaller than the sum of its proper divisors (1763989130).

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

1331312200 is a wasteful number, since it uses less digits than its factorization.

1331312200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656577 (or 6656568 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1331312200 is about 36487.1511631149. The cubic root of 1331312200 is about 1100.0859987860.

Adding to 1331312200 its reverse (22131331), we get a palindrome (1353443531).

The spelling of 1331312200 in words is "one billion, three hundred thirty-one million, three hundred twelve thousand, two hundred".