312120322 has 16 divisors (see below), whose sum is σ = 472211712. Its totient is φ = 154720800.

The previous prime is 312120313. The next prime is 312120329. The reversal of 312120322 is 223021213.

It is a junction number, because it is equal to n+sod(n) for n = 312120296 and 312120305.

It is not an unprimeable number, because it can be changed into a prime (312120329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282423 + ... + 283525.

It is an arithmetic number, because the mean of its divisors is an integer number (29513232).

Almost surely, 2^312120322 is an apocalyptic number.

312120322 is a deficient number, since it is larger than the sum of its proper divisors (160091390).

312120322 is a wasteful number, since it uses less digits than its factorization.

312120322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312120322 is about 17666.9273502780. The cubic root of 312120322 is about 678.3294648639.

Adding to 312120322 its reverse (223021213), we get a palindrome (535141535).

The spelling of 312120322 in words is "three hundred twelve million, one hundred twenty thousand, three hundred twenty-two".