311342340340 has 96 divisors (see below), whose sum is σ = 670463329536. Its totient is φ = 121399649280.

The previous prime is 311342340307. The next prime is 311342340341. The reversal of 311342340340 is 43043243113.

It is a junction number, because it is equal to n+sod(n) for n = 311342340299 and 311342340308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311342340341) 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, 123498280 + ... + 123500800.

It is an arithmetic number, because the mean of its divisors is an integer number (6983993016).

Almost surely, 2^311342340340 is an apocalyptic number.

It is an amenable number.

311342340340 is an abundant number, since it is smaller than the sum of its proper divisors (359120989196).

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

311342340340 is a wasteful number, since it uses less digits than its factorization.

311342340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 311342340340 its reverse (43043243113), we get a palindrome (354385583453).

The spelling of 311342340340 in words is "three hundred eleven billion, three hundred forty-two million, three hundred forty thousand, three hundred forty".