1255012123 has 2 divisors, whose sum is σ = 1255012124. Its totient is φ = 1255012122.

The previous prime is 1255011983. The next prime is 1255012133. The reversal of 1255012123 is 3212105521.

It is a strong prime.

It is an emirp because it is prime and its reverse (3212105521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255012123 - 2¹³ = 1255003931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255012094 and 1255012103.

It is not a weakly prime, because it can be changed into another prime (1255012133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627506061 + 627506062.

It is an arithmetic number, because the mean of its divisors is an integer number (627506062).

Almost surely, 2^1255012123 is an apocalyptic number.

1255012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255012123 is an equidigital number, since it uses as much as digits as its factorization.

1255012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1255012123 is about 35426.1502706687. The cubic root of 1255012123 is about 1078.6551971620.

Adding to 1255012123 its reverse (3212105521), we get a palindrome (4467117644).

The spelling of 1255012123 in words is "one billion, two hundred fifty-five million, twelve thousand, one hundred twenty-three".