311312030000 has 100 divisors (see below), whose sum is σ = 754739381088. Its totient is φ = 124356000000.

The previous prime is 311312029999. The next prime is 311312030039. The reversal of 311312030000 is 30213113.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7489274 + ... + 7530726.

Almost surely, 2^311312030000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311312030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377369690544).

311312030000 is an abundant number, since it is smaller than the sum of its proper divisors (443427351088).

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

311312030000 is an equidigital number, since it uses as much as digits as its factorization.

311312030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42232 (or 42211 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 311312030000 its reverse (30213113), we get a palindrome (311342243113).

The spelling of 311312030000 in words is "three hundred eleven billion, three hundred twelve million, thirty thousand".