111210001000129 has 2 divisors, whose sum is σ = 111210001000130. Its totient is φ = 111210001000128.

The previous prime is 111210001000057. The next prime is 111210001000171. The reversal of 111210001000129 is 921000100012111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104149209443904 + 7060791556225 = 10205352^2 + 2657215^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210001000129 - 2²³ = 111209992611521 is a prime.

It is not a weakly prime, because it can be changed into another prime (111210001000229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605000500064 + 55605000500065.

It is an arithmetic number, because the mean of its divisors is an integer number (55605000500065).

Almost surely, 2^{111210001000129} is an apocalyptic number.

It is an amenable number.

111210001000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

111210001000129 is an equidigital number, since it uses as much as digits as its factorization.

111210001000129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 111210001000129 in words is "one hundred eleven trillion, two hundred ten billion, one million, one hundred twenty-nine", and thus it is an aban number.