31234303222321 has 2 divisors, whose sum is σ = 31234303222322. Its totient is φ = 31234303222320.

The previous prime is 31234303222303. The next prime is 31234303222391. The reversal of 31234303222321 is 12322230343213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27473961716721 + 3760341505600 = 5241561^2 + 1939160^2 .

It is a cyclic number.

It is not a de Polignac number, because 31234303222321 - 2⁷ = 31234303222193 is a prime.

It is not a weakly prime, because it can be changed into another prime (31234303222391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617151611160 + 15617151611161.

It is an arithmetic number, because the mean of its divisors is an integer number (15617151611161).

Almost surely, 2^{31234303222321} is an apocalyptic number.

It is an amenable number.

31234303222321 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234303222321 is an equidigital number, since it uses as much as digits as its factorization.

31234303222321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 31234303222321 its reverse (12322230343213), we get a palindrome (43556533565534).

The spelling of 31234303222321 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred three million, two hundred twenty-two thousand, three hundred twenty-one".