1200031310000 has 300 divisors, whose sum is σ = 3025506115632. Its totient is φ = 460930176000.

The previous prime is 1200031309933. The next prime is 1200031310033. The reversal of 1200031310000 is 131300021.

It is a super-2 number, since 2×1200031310000² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2464129757 + ... + 2464130243.

Almost surely, 2^{1200031310000} is an apocalyptic number.

1200031310000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200031310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512753057816).

1200031310000 is an abundant number, since it is smaller than the sum of its proper divisors (1825474805632).

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

1200031310000 is an equidigital number, since it uses as much as digits as its factorization.

1200031310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 1200031310000 its reverse (131300021), we get a palindrome (1200162610021).

The spelling of 1200031310000 in words is "one trillion, two hundred billion, thirty-one million, three hundred ten thousand".