1270813123 has 2 divisors, whose sum is σ = 1270813124. Its totient is φ = 1270813122.

The previous prime is 1270813097. The next prime is 1270813129. The reversal of 1270813123 is 3213180721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270813123 is a prime.

It is a super-2 number, since 2×1270813123² = 3229931987178026258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1270813091 and 1270813100.

It is not a weakly prime, because it can be changed into another prime (1270813129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635406561 + 635406562.

It is an arithmetic number, because the mean of its divisors is an integer number (635406562).

Almost surely, 2^1270813123 is an apocalyptic number.

1270813123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270813123 is an equidigital number, since it uses as much as digits as its factorization.

1270813123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1270813123 is about 35648.4659277226. The cubic root of 1270813123 is about 1083.1632008542.

Adding to 1270813123 its reverse (3213180721), we get a palindrome (4483993844).

The spelling of 1270813123 in words is "one billion, two hundred seventy million, eight hundred thirteen thousand, one hundred twenty-three".