1211119999879 has 2 divisors, whose sum is σ = 1211119999880. Its totient is φ = 1211119999878.

The previous prime is 1211119999823. The next prime is 1211120000003. The reversal of 1211119999879 is 9789999111121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211119999879 - 2³¹ = 1208972516231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211119999819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605559999939 + 605559999940.

It is an arithmetic number, because the mean of its divisors is an integer number (605559999940).

Almost surely, 2^{1211119999879} is an apocalyptic number.

1211119999879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211119999879 is an equidigital number, since it uses as much as digits as its factorization.

1211119999879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 67.

The spelling of 1211119999879 in words is "one trillion, two hundred eleven billion, one hundred nineteen million, nine hundred ninety-nine thousand, eight hundred seventy-nine".