311032344312 has 128 divisors (see below), whose sum is σ = 888003547200. Its totient is φ = 100798732800.

The previous prime is 311032344281. The next prime is 311032344313. The reversal of 311032344312 is 213443230113.

It is a happy number.

311032344312 is a `hidden beast` number, since 3 + 1 + 1 + 0 + 3 + 2 + 344 + 312 = 666.

It is a super-2 number, since 2×311032344312² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311032344313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11022862 + ... + 11051042.

Almost surely, 2^311032344312 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 311032344312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444001773600).

311032344312 is an abundant number, since it is smaller than the sum of its proper divisors (576971202888).

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

311032344312 is a wasteful number, since it uses less digits than its factorization.

311032344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29614 (or 29604 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 311032344312 its reverse (213443230113), we get a palindrome (524475574425).

The spelling of 311032344312 in words is "three hundred eleven billion, thirty-two million, three hundred forty-four thousand, three hundred twelve".