311230112004 has 144 divisors (see below), whose sum is σ = 902367123840. Its totient is φ = 88601264640.

The previous prime is 311230112003. The next prime is 311230112021. The reversal of 311230112004 is 400211032113.

311230112004 is a `hidden beast` number, since 311 + 230 + 1 + 120 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (311230112003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126566527 + ... + 126568985.

It is an arithmetic number, because the mean of its divisors is an integer number (6266438360).

Almost surely, 2^311230112004 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 311230112004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451183561920).

311230112004 is an abundant number, since it is smaller than the sum of its proper divisors (591137011836).

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

311230112004 is a wasteful number, since it uses less digits than its factorization.

311230112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 311230112004 its reverse (400211032113), we get a palindrome (711441144117).

The spelling of 311230112004 in words is "three hundred eleven billion, two hundred thirty million, one hundred twelve thousand, four".