311424312340 has 48 divisors (see below), whose sum is σ = 657139166208. Its totient is φ = 123970454784.

The previous prime is 311424312323. The next prime is 311424312343. The reversal of 311424312340 is 43213424113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311424312299 and 311424312308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311424312343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16148944 + ... + 16168216.

It is an arithmetic number, because the mean of its divisors is an integer number (13690399296).

Almost surely, 2^311424312340 is an apocalyptic number.

It is an amenable number.

311424312340 is an abundant number, since it is smaller than the sum of its proper divisors (345714853868).

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

311424312340 is a wasteful number, since it uses less digits than its factorization.

311424312340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23128 (or 23126 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 311424312340 its reverse (43213424113), we get a palindrome (354637736453).

The spelling of 311424312340 in words is "three hundred eleven billion, four hundred twenty-four million, three hundred twelve thousand, three hundred forty".