312523122 has 8 divisors (see below), whose sum is σ = 625046256. Its totient is φ = 104174372.

The previous prime is 312523117. The next prime is 312523151. The reversal of 312523122 is 221325213.

It is a sphenic number, since it is the product of 3 distinct primes.

312523122 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 26043588 + ... + 26043599.

It is an arithmetic number, because the mean of its divisors is an integer number (78130782).

Almost surely, 2^312523122 is an apocalyptic number.

312523122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

312523122 is a wasteful number, since it uses less digits than its factorization.

312523122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52087192.

The product of its digits is 720, while the sum is 21.

The square root of 312523122 is about 17678.3235064867. The cubic root of 312523122 is about 678.6211404731.

Adding to 312523122 its reverse (221325213), we get a palindrome (533848335).

The spelling of 312523122 in words is "three hundred twelve million, five hundred twenty-three thousand, one hundred twenty-two".