122312320321 has 2 divisors, whose sum is σ = 122312320322. Its totient is φ = 122312320320.

The previous prime is 122312320313. The next prime is 122312320421. The reversal of 122312320321 is 123023213221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95828012721 + 26484307600 = 309561^2 + 162740^2 .

It is a cyclic number.

It is not a de Polignac number, because 122312320321 - 2³ = 122312320313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122312320292 and 122312320301.

It is not a weakly prime, because it can be changed into another prime (122312320021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156160160 + 61156160161.

It is an arithmetic number, because the mean of its divisors is an integer number (61156160161).

Almost surely, 2^122312320321 is an apocalyptic number.

It is an amenable number.

122312320321 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312320321 is an equidigital number, since it uses as much as digits as its factorization.

122312320321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 122312320321 its reverse (123023213221), we get a palindrome (245335533542).

The spelling of 122312320321 in words is "one hundred twenty-two billion, three hundred twelve million, three hundred twenty thousand, three hundred twenty-one".