1311120320200 has 48 divisors (see below), whose sum is σ = 3055144162500. Its totient is φ = 523280056320.

The previous prime is 1311120320161. The next prime is 1311120320227. The reversal of 1311120320200 is 20230211131.

It can be written as a sum of positive squares in 6 ways, for example, as 481377866596 + 829742453604 = 693814^2 + 910902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7210425 + ... + 7390024.

Almost surely, 2^{1311120320200} is an apocalyptic number.

1311120320200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311120320200 is an abundant number, since it is smaller than the sum of its proper divisors (1744023842300).

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

1311120320200 is a wasteful number, since it uses less digits than its factorization.

1311120320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600914 (or 14600905 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1311120320200 its reverse (20230211131), we get a palindrome (1331350531331).

The spelling of 1311120320200 in words is "one trillion, three hundred eleven billion, one hundred twenty million, three hundred twenty thousand, two hundred".