3120311340 has 72 divisors (see below), whose sum is σ = 9685083408. Its totient is φ = 812730240.

The previous prime is 3120311339. The next prime is 3120311351. The reversal of 3120311340 is 431130213.

3120311340 is a `hidden beast` number, since 3 + 12 + 0 + 311 + 340 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193831 + ... + 209310.

Almost surely, 2^3120311340 is an apocalyptic number.

3120311340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3120311340 is an abundant number, since it is smaller than the sum of its proper divisors (6564772068).

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

3120311340 is a wasteful number, since it uses less digits than its factorization.

3120311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403199 (or 403194 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3120311340 is about 55859.7470456142. The cubic root of 3120311340 is about 1461.2773177844.

Adding to 3120311340 its reverse (431130213), we get a palindrome (3551441553).

The spelling of 3120311340 in words is "three billion, one hundred twenty million, three hundred eleven thousand, three hundred forty".