312320122 has 16 divisors (see below), whose sum is σ = 476922600. Its totient is φ = 153354240.

The previous prime is 312320093. The next prime is 312320131. The reversal of 312320122 is 221023213.

It can be written as a sum of positive squares in 4 ways, for example, as 150038001 + 162282121 = 12249^2 + 12739^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312320096 and 312320105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92154 + ... + 95482.

Almost surely, 2^312320122 is an apocalyptic number.

312320122 is a deficient number, since it is larger than the sum of its proper divisors (164602478).

312320122 is a wasteful number, since it uses less digits than its factorization.

312320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161.

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

The square root of 312320122 is about 17672.5810791746. The cubic root of 312320122 is about 678.4741754220.

Adding to 312320122 its reverse (221023213), we get a palindrome (533343335).

The spelling of 312320122 in words is "three hundred twelve million, three hundred twenty thousand, one hundred twenty-two".