1011505323 has 8 divisors (see below), whose sum is σ = 1348901008. Its totient is φ = 674223264.

The previous prime is 1011505307. The next prime is 1011505333. The reversal of 1011505323 is 3235051101.

1011505323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011505323 - 2⁴ = 1011505307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011505323.

It is not an unprimeable number, because it can be changed into a prime (1011505333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4840 + ... + 45237.

It is an arithmetic number, because the mean of its divisors is an integer number (168612626).

Almost surely, 2^1011505323 is an apocalyptic number.

1011505323 is a deficient number, since it is larger than the sum of its proper divisors (337395685).

1011505323 is an equidigital number, since it uses as much as digits as its factorization.

1011505323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56813.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1011505323 is about 31804.1714716796. The cubic root of 1011505323 is about 1003.8204929124.

Adding to 1011505323 its reverse (3235051101), we get a palindrome (4246556424).

The spelling of 1011505323 in words is "one billion, eleven million, five hundred five thousand, three hundred twenty-three".