1215254323 has 2 divisors, whose sum is σ = 1215254324. Its totient is φ = 1215254322.

The previous prime is 1215254317. The next prime is 1215254351. The reversal of 1215254323 is 3234525121.

It is an a-pointer prime, because the next prime (1215254351) can be obtained adding 1215254323 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1215254323 - 2⁹ = 1215253811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215254291 and 1215254300.

It is not a weakly prime, because it can be changed into another prime (1215254353) 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, 607627161 + 607627162.

It is an arithmetic number, because the mean of its divisors is an integer number (607627162).

Almost surely, 2^1215254323 is an apocalyptic number.

1215254323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215254323 is an equidigital number, since it uses as much as digits as its factorization.

1215254323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 1215254323 is about 34860.4980314395. The cubic root of 1215254323 is about 1067.1424388093.

Adding to 1215254323 its reverse (3234525121), we get a palindrome (4449779444).

The spelling of 1215254323 in words is "one billion, two hundred fifteen million, two hundred fifty-four thousand, three hundred twenty-three".