1200311131200 has 168 divisors, whose sum is σ = 3972872306208. Its totient is φ = 317250232320.

The previous prime is 1200311131169. The next prime is 1200311131267. The reversal of 1200311131200 is 21311130021.

It is a happy number.

It is a super-3 number, since 3×1200311131200³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200311131200.

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, 564082 + ... + 1648881.

Almost surely, 2^{1200311131200} is an apocalyptic number.

1200311131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200311131200 is an abundant number, since it is smaller than the sum of its proper divisors (2772561175008).

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

1200311131200 is a wasteful number, since it uses less digits than its factorization.

1200311131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213101 (or 2213086 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1200311131200 its reverse (21311130021), we get a palindrome (1221622261221).

The spelling of 1200311131200 in words is "one trillion, two hundred billion, three hundred eleven million, one hundred thirty-one thousand, two hundred".