12203179578869 has 2 divisors, whose sum is σ = 12203179578870. Its totient is φ = 12203179578868.

The previous prime is 12203179578829. The next prime is 12203179578871. The reversal of 12203179578869 is 96887597130221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8139979894225 + 4063199684644 = 2853065^2 + 2015738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12203179578869 is a prime.

It is a super-2 number, since 2×12203179578869² (a number of 27 digits) contains 22 as substring.

Together with 12203179578871, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12203179578799 and 12203179578808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12203179578829) 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, 6101589789434 + 6101589789435.

It is an arithmetic number, because the mean of its divisors is an integer number (6101589789435).

Almost surely, 2^{12203179578869} is an apocalyptic number.

It is an amenable number.

12203179578869 is a deficient number, since it is larger than the sum of its proper divisors (1).

12203179578869 is an equidigital number, since it uses as much as digits as its factorization.

12203179578869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 12203179578869 in words is "twelve trillion, two hundred three billion, one hundred seventy-nine million, five hundred seventy-eight thousand, eight hundred sixty-nine".