312312242 has 32 divisors (see below), whose sum is σ = 519390144. Its totient is φ = 139665600.

The previous prime is 312312241. The next prime is 312312271. The reversal of 312312242 is 242213213.

It is not an unprimeable number, because it can be changed into a prime (312312241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425708 + ... + 426440.

It is an arithmetic number, because the mean of its divisors is an integer number (16230942).

Almost surely, 2^312312242 is an apocalyptic number.

312312242 is a deficient number, since it is larger than the sum of its proper divisors (207077902).

312312242 is a wasteful number, since it uses less digits than its factorization.

312312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its digits is 576, while the sum is 20.

The square root of 312312242 is about 17672.3581335372. The cubic root of 312312242 is about 678.4684692879.

Adding to 312312242 its reverse (242213213), we get a palindrome (554525455).

The spelling of 312312242 in words is "three hundred twelve million, three hundred twelve thousand, two hundred forty-two".