1123030215 has 24 divisors (see below), whose sum is σ = 1975644528. Its totient is φ = 590008320.

The previous prime is 1123030201. The next prime is 1123030219. The reversal of 1123030215 is 5120303211.

It is not a de Polignac number, because 1123030215 - 2⁶ = 1123030151 is a prime.

It is a super-2 number, since 2×1123030215² = 2522393727605892450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123030219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183226 + ... + 189255.

It is an arithmetic number, because the mean of its divisors is an integer number (82318522).

Almost surely, 2^1123030215 is an apocalyptic number.

1123030215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123030215 is a deficient number, since it is larger than the sum of its proper divisors (852614313).

1123030215 is a wasteful number, since it uses less digits than its factorization.

1123030215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372559 (or 372556 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1123030215 is about 33511.6429767327. The cubic root of 1123030215 is about 1039.4345468443.

Adding to 1123030215 its reverse (5120303211), we get a palindrome (6243333426).

The spelling of 1123030215 in words is "one billion, one hundred twenty-three million, thirty thousand, two hundred fifteen".