1210321301117 has 2 divisors, whose sum is σ = 1210321301118. Its totient is φ = 1210321301116.

The previous prime is 1210321301113. The next prime is 1210321301131. The reversal of 1210321301117 is 7111031230121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162312547236 + 48008753881 = 1078106^2 + 219109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210321301117 - 2² = 1210321301113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210321301092 and 1210321301101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210321301113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605160650558 + 605160650559.

It is an arithmetic number, because the mean of its divisors is an integer number (605160650559).

Almost surely, 2^{1210321301117} is an apocalyptic number.

It is an amenable number.

1210321301117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210321301117 is an equidigital number, since it uses as much as digits as its factorization.

1210321301117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 1210321301117 its reverse (7111031230121), we get a palindrome (8321352531238).

The spelling of 1210321301117 in words is "one trillion, two hundred ten billion, three hundred twenty-one million, three hundred one thousand, one hundred seventeen".