1215043323 has 32 divisors (see below), whose sum is σ = 1816675392. Its totient is φ = 717465600.

The previous prime is 1215043321. The next prime is 1215043327. The reversal of 1215043323 is 3233405121.

1215043323 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1215043323 - 2¹ = 1215043321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215043293 and 1215043302.

It is not an unprimeable number, because it can be changed into a prime (1215043321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91311 + ... + 103767.

It is an arithmetic number, because the mean of its divisors is an integer number (56771106).

Almost surely, 2^1215043323 is an apocalyptic number.

1215043323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1215043323 is a deficient number, since it is larger than the sum of its proper divisors (601632069).

1215043323 is a wasteful number, since it uses less digits than its factorization.

1215043323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1215043323 is about 34857.4715520217. The cubic root of 1215043323 is about 1067.0806739361.

Adding to 1215043323 its reverse (3233405121), we get a palindrome (4448448444).

The spelling of 1215043323 in words is "one billion, two hundred fifteen million, forty-three thousand, three hundred twenty-three".