1213419066869 has 2 divisors, whose sum is σ = 1213419066870. Its totient is φ = 1213419066868.

The previous prime is 1213419066829. The next prime is 1213419066887. The reversal of 1213419066869 is 9686609143121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747697443025 + 465721623844 = 864695^2 + 682438^2 .

It is an emirp because it is prime and its reverse (9686609143121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213419066869 - 2²⁴ = 1213402289653 is a prime.

It is a super-2 number, since 2×1213419066869² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213419066829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606709533434 + 606709533435.

It is an arithmetic number, because the mean of its divisors is an integer number (606709533435).

Almost surely, 2^{1213419066869} is an apocalyptic number.

It is an amenable number.

1213419066869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213419066869 is an equidigital number, since it uses as much as digits as its factorization.

1213419066869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 1213419066869 in words is "one trillion, two hundred thirteen billion, four hundred nineteen million, sixty-six thousand, eight hundred sixty-nine".