1115520323 has 2 divisors, whose sum is σ = 1115520324. Its totient is φ = 1115520322.

The previous prime is 1115520317. The next prime is 1115520361. The reversal of 1115520323 is 3230255111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115520323 - 2¹⁰ = 1115519299 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115520313) 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, 557760161 + 557760162.

It is an arithmetic number, because the mean of its divisors is an integer number (557760162).

Almost surely, 2^1115520323 is an apocalyptic number.

1115520323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115520323 is an equidigital number, since it uses as much as digits as its factorization.

1115520323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1115520323 is about 33399.4060276526. The cubic root of 1115520323 is about 1037.1124050416.

Adding to 1115520323 its reverse (3230255111), we get a palindrome (4345775434).

The spelling of 1115520323 in words is "one billion, one hundred fifteen million, five hundred twenty thousand, three hundred twenty-three".