1210123000001 has 2 divisors, whose sum is σ = 1210123000002. Its totient is φ = 1210123000000.

The previous prime is 1210122999989. The next prime is 1210123000033. The reversal of 1210123000001 is 1000003210121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142865764401 + 67257235600 = 1069049^2 + 259340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210123000001 - 2¹⁴ = 1210122983617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210123000081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061500000 + 605061500001.

It is an arithmetic number, because the mean of its divisors is an integer number (605061500001).

Almost surely, 2^{1210123000001} is an apocalyptic number.

It is an amenable number.

1210123000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210123000001 is an equidigital number, since it uses as much as digits as its factorization.

1210123000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1210123000001 its reverse (1000003210121), we get a palindrome (2210126210122).

The spelling of 1210123000001 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, one", and thus it is an aban number.