1217127238141 has 2 divisors, whose sum is σ = 1217127238142. Its totient is φ = 1217127238140.

The previous prime is 1217127238121. The next prime is 1217127238169. The reversal of 1217127238141 is 1418327217121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069939915641 + 147187322500 = 1034379^2 + 383650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1217127238141 - 2¹⁵ = 1217127205373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1217127238094 and 1217127238103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1217127238121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608563619070 + 608563619071.

It is an arithmetic number, because the mean of its divisors is an integer number (608563619071).

Almost surely, 2^{1217127238141} is an apocalyptic number.

It is an amenable number.

1217127238141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217127238141 is an equidigital number, since it uses as much as digits as its factorization.

1217127238141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 40.

The spelling of 1217127238141 in words is "one trillion, two hundred seventeen billion, one hundred twenty-seven million, two hundred thirty-eight thousand, one hundred forty-one".