318140120 has 32 divisors (see below), whose sum is σ = 726505200. Its totient is φ = 125355648.

The previous prime is 318140111. The next prime is 318140129. The reversal of 318140120 is 21041813.

It is an interprime number because it is at equal distance from previous prime (318140111) and next prime (318140129).

It is a super-2 number, since 2×318140120² = 202426271907228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 318140092 and 318140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318140129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56675 + ... + 62034.

Almost surely, 2^318140120 is an apocalyptic number.

It is an amenable number.

318140120 is an abundant number, since it is smaller than the sum of its proper divisors (408365080).

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

318140120 is a wasteful number, since it uses less digits than its factorization.

318140120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118787 (or 118783 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 318140120 is about 17836.4828371515. The cubic root of 318140120 is about 682.6626571844.

Adding to 318140120 its reverse (21041813), we get a palindrome (339181933).

The spelling of 318140120 in words is "three hundred eighteen million, one hundred forty thousand, one hundred twenty".