311340234 has 16 divisors (see below), whose sum is σ = 624686400. Its totient is φ = 103445760.

The previous prime is 311340229. The next prime is 311340241. The reversal of 311340234 is 432043113.

It is a self number, because there is not a number n which added to its sum of digits gives 311340234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81559 + ... + 85290.

It is an arithmetic number, because the mean of its divisors is an integer number (39042900).

Almost surely, 2^311340234 is an apocalyptic number.

311340234 is an abundant number, since it is smaller than the sum of its proper divisors (313346166).

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

311340234 is a wasteful number, since it uses less digits than its factorization.

311340234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167165.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 311340234 is about 17644.8359017589. The cubic root of 311340234 is about 677.7638730124.

Adding to 311340234 its reverse (432043113), we get a palindrome (743383347).

The spelling of 311340234 in words is "three hundred eleven million, three hundred forty thousand, two hundred thirty-four".