1210123000129 has 2 divisors, whose sum is σ = 1210123000130. Its totient is φ = 1210123000128.

The previous prime is 1210123000103. The next prime is 1210123000133. The reversal of 1210123000129 is 9210003210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1206043240000 + 4079760129 = 1098200^2 + 63873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210123000129 - 2⁷ = 1210123000001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210123000729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061500064 + 605061500065.

It is an arithmetic number, because the mean of its divisors is an integer number (605061500065).

Almost surely, 2^{1210123000129} is an apocalyptic number.

It is an amenable number.

1210123000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210123000129 is an equidigital number, since it uses as much as digits as its factorization.

1210123000129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1210123000129 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one hundred twenty-nine", and thus it is an aban number.