1311113321200 has 60 divisors (see below), whose sum is σ = 3150091468048. Its totient is φ = 524421734400.

The previous prime is 1311113321171. The next prime is 1311113321209. The reversal of 1311113321200 is 21233111131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311113321209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10848304 + ... + 10968496.

Almost surely, 2^{1311113321200} is an apocalyptic number.

1311113321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311113321200 is an abundant number, since it is smaller than the sum of its proper divisors (1838978146848).

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

1311113321200 is a wasteful number, since it uses less digits than its factorization.

1311113321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147482 (or 147471 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1311113321200 its reverse (21233111131), we get a palindrome (1332346432331).

The spelling of 1311113321200 in words is "one trillion, three hundred eleven billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred".