311123230000 has 200 divisors, whose sum is σ = 822716896320. Its totient is φ = 113001120000.

The previous prime is 311123229953. The next prime is 311123230001. The reversal of 311123230000 is 32321113.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (311123230001) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 178089127 + ... + 178090873.

Almost surely, 2^311123230000 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 311123230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411358448160).

311123230000 is an abundant number, since it is smaller than the sum of its proper divisors (511593666320).

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

311123230000 is a wasteful number, since it uses less digits than its factorization.

311123230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 311123230000 its reverse (32321113), we get a palindrome (311155551113).

The spelling of 311123230000 in words is "three hundred eleven billion, one hundred twenty-three million, two hundred thirty thousand".