121186660461611 has 2 divisors, whose sum is σ = 121186660461612. Its totient is φ = 121186660461610.

The previous prime is 121186660461593. The next prime is 121186660461653. The reversal of 121186660461611 is 116164066681121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121186660461611 - 2¹⁰ = 121186660460587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121186660461611.

It is not a weakly prime, because it can be changed into another prime (121186660463611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593330230805 + 60593330230806.

It is an arithmetic number, because the mean of its divisors is an integer number (60593330230806).

Almost surely, 2^{121186660461611} is an apocalyptic number.

121186660461611 is a deficient number, since it is larger than the sum of its proper divisors (1).

121186660461611 is an equidigital number, since it uses as much as digits as its factorization.

121186660461611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 121186660461611 in words is "one hundred twenty-one trillion, one hundred eighty-six billion, six hundred sixty million, four hundred sixty-one thousand, six hundred eleven".