1270123 has 2 divisors, whose sum is σ = 1270124. Its totient is φ = 1270122.

The previous prime is 1270111. The next prime is 1270141. The reversal of 1270123 is 3210721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270123 is a prime.

It is a super-2 number, since 2×1270123² = 3226424870258, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1270097 and 1270106.

It is not a weakly prime, because it can be changed into another prime (1270103) 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, 635061 + 635062.

It is an arithmetic number, because the mean of its divisors is an integer number (635062).

2^1270123 is an apocalyptic number.

1270123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270123 is an equidigital number, since it uses as much as digits as its factorization.

1270123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1270123 is about 1126.9973380625. The cubic root of 1270123 is about 108.2967092505.

Adding to 1270123 its reverse (3210721), we get a palindrome (4480844).

The spelling of 1270123 in words is "one million, two hundred seventy thousand, one hundred twenty-three".