321300013312261 has 2 divisors, whose sum is σ = 321300013312262. Its totient is φ = 321300013312260.

The previous prime is 321300013312193. The next prime is 321300013312273. The reversal of 321300013312261 is 162213310003123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253191553056036 + 68108460256225 = 15911994^2 + 8252785^2 .

It is a cyclic number.

It is not a de Polignac number, because 321300013312261 - 2⁷ = 321300013312133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321300013315261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160650006656130 + 160650006656131.

It is an arithmetic number, because the mean of its divisors is an integer number (160650006656131).

Almost surely, 2^{321300013312261} is an apocalyptic number.

It is an amenable number.

321300013312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

321300013312261 is an equidigital number, since it uses as much as digits as its factorization.

321300013312261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 321300013312261 its reverse (162213310003123), we get a palindrome (483513323315384).

The spelling of 321300013312261 in words is "three hundred twenty-one trillion, three hundred billion, thirteen million, three hundred twelve thousand, two hundred sixty-one".