312332030221 has 2 divisors, whose sum is σ = 312332030222. Its totient is φ = 312332030220.

The previous prime is 312332030161. The next prime is 312332030281. The reversal of 312332030221 is 122030233213.

It is a balanced prime because it is at equal distance from previous prime (312332030161) and next prime (312332030281).

It can be written as a sum of positive squares in only one way, i.e., 312246264100 + 85766121 = 558790^2 + 9261^2 .

It is a cyclic number.

It is not a de Polignac number, because 312332030221 - 2¹³ = 312332022029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312332030192 and 312332030201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312332030281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156166015110 + 156166015111.

It is an arithmetic number, because the mean of its divisors is an integer number (156166015111).

Almost surely, 2^312332030221 is an apocalyptic number.

It is an amenable number.

312332030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

312332030221 is an equidigital number, since it uses as much as digits as its factorization.

312332030221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 312332030221 its reverse (122030233213), we get a palindrome (434362263434).

The spelling of 312332030221 in words is "three hundred twelve billion, three hundred thirty-two million, thirty thousand, two hundred twenty-one".