1210103011123 has 2 divisors, whose sum is σ = 1210103011124. Its totient is φ = 1210103011122.

The previous prime is 1210103011111. The next prime is 1210103011151. The reversal of 1210103011123 is 3211103010121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210103011123 - 2¹³ = 1210103002931 is a prime.

It is a super-3 number, since 3×1210103011123³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1210103011097 and 1210103011106.

It is not a weakly prime, because it can be changed into another prime (1210103711123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605051505561 + 605051505562.

It is an arithmetic number, because the mean of its divisors is an integer number (605051505562).

Almost surely, 2^{1210103011123} is an apocalyptic number.

1210103011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210103011123 is an equidigital number, since it uses as much as digits as its factorization.

1210103011123 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 16.

Adding to 1210103011123 its reverse (3211103010121), we get a palindrome (4421206021244).

The spelling of 1210103011123 in words is "one trillion, two hundred ten billion, one hundred three million, eleven thousand, one hundred twenty-three".