1210123 has 2 divisors, whose sum is σ = 1210124. Its totient is φ = 1210122.

The previous prime is 1210103. The next prime is 1210127. The reversal of 1210123 is 3210121.

1210123 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is an emirp because it is prime and its reverse (3210121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210123 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1210127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605061 + 605062.

It is an arithmetic number, because the mean of its divisors is an integer number (605062).

2^1210123 is an apocalyptic number.

1210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210123 is an equidigital number, since it uses as much as digits as its factorization.

1210123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1210123 is about 1100.0559076702. The cubic root of 1210123 is about 106.5638342726.

Adding to 1210123 its reverse (3210121), we get a palindrome (4420244).

The spelling of 1210123 in words is "one million, two hundred ten thousand, one hundred twenty-three".