312312330 has 48 divisors (see below), whose sum is σ = 885834144. Its totient is φ = 75711840.

The previous prime is 312312307. The next prime is 312312337. The reversal of 312312330 is 33213213.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312312337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156744 + ... + 158723.

It is an arithmetic number, because the mean of its divisors is an integer number (18454878).

Almost surely, 2^312312330 is an apocalyptic number.

312312330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312312330 is an abundant number, since it is smaller than the sum of its proper divisors (573521814).

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

312312330 is a wasteful number, since it uses less digits than its factorization.

312312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315491 (or 315488 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 312312330 is about 17672.3606233010. The cubic root of 312312330 is about 678.4685330118.

Adding to 312312330 its reverse (33213213), we get a palindrome (345525543).

The spelling of 312312330 in words is "three hundred twelve million, three hundred twelve thousand, three hundred thirty".