312312122 has 24 divisors (see below), whose sum is σ = 480598272. Its totient is φ = 152201400.

The previous prime is 312312103. The next prime is 312312157. The reversal of 312312122 is 221213213.

It is a self number, because there is not a number n which added to its sum of digits gives 312312122.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1635047 + ... + 1635237.

It is an arithmetic number, because the mean of its divisors is an integer number (20024928).

Almost surely, 2^312312122 is an apocalyptic number.

312312122 is a deficient number, since it is larger than the sum of its proper divisors (168286150).

312312122 is a wasteful number, since it uses less digits than its factorization.

312312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 403 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 312312122 is about 17672.3547384043. The cubic root of 312312122 is about 678.4683823918.

Adding to 312312122 its reverse (221213213), we get a palindrome (533525335).

The spelling of 312312122 in words is "three hundred twelve million, three hundred twelve thousand, one hundred twenty-two".