312202117 has 2 divisors, whose sum is σ = 312202118. Its totient is φ = 312202116.

The previous prime is 312202103. The next prime is 312202133. The reversal of 312202117 is 711202213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301404321 + 10797796 = 17361^2 + 3286^2 .

It is a cyclic number.

It is not a de Polignac number, because 312202117 - 2¹¹ = 312200069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312202094 and 312202103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312202417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156101058 + 156101059.

It is an arithmetic number, because the mean of its divisors is an integer number (156101059).

Almost surely, 2^312202117 is an apocalyptic number.

It is an amenable number.

312202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

312202117 is an equidigital number, since it uses as much as digits as its factorization.

312202117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 312202117 is about 17669.2421173066. The cubic root of 312202117 is about 678.3887145705.

The spelling of 312202117 in words is "three hundred twelve million, two hundred two thousand, one hundred seventeen".