312130302322 has 16 divisors (see below), whose sum is σ = 475900033752. Its totient is φ = 153497272320.

The previous prime is 312130302257. The next prime is 312130302347. The reversal of 312130302322 is 223203031213.

It can be written as a sum of positive squares in 4 ways, for example, as 272965496521 + 39164805801 = 522461^2 + 197901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312130302293 and 312130302302.

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, 2179428 + ... + 2318224.

Almost surely, 2^312130302322 is an apocalyptic number.

312130302322 is a deficient number, since it is larger than the sum of its proper divisors (163769731430).

312130302322 is a wasteful number, since it uses less digits than its factorization.

312130302322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157293.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 312130302322 its reverse (223203031213), we get a palindrome (535333333535).

The spelling of 312130302322 in words is "three hundred twelve billion, one hundred thirty million, three hundred two thousand, three hundred twenty-two".