312331130 has 16 divisors (see below), whose sum is σ = 570115584. Its totient is φ = 123172560.

The previous prime is 312331109. The next prime is 312331133. The reversal of 312331130 is 31133213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312331099 and 312331108.

It is not an unprimeable number, because it can be changed into a prime (312331133) 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, 219242 + ... + 220661.

It is an arithmetic number, because the mean of its divisors is an integer number (35632224).

Almost surely, 2^312331130 is an apocalyptic number.

312331130 is a deficient number, since it is larger than the sum of its proper divisors (257784454).

312331130 is a wasteful number, since it uses less digits than its factorization.

312331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439981.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 312331130 is about 17672.8925193359. The cubic root of 312331130 is about 678.4821464699.

Adding to 312331130 its reverse (31133213), we get a palindrome (343464343).

The spelling of 312331130 in words is "three hundred twelve million, three hundred thirty-one thousand, one hundred thirty".