1123102215 has 24 divisors (see below), whose sum is σ = 1965618720. Its totient is φ = 593169984.

The previous prime is 1123102207. The next prime is 1123102219. The reversal of 1123102215 is 5122013211.

It is not a de Polignac number, because 1123102215 - 2³ = 1123102207 is a prime.

It is a super-2 number, since 2×1123102215² = 2522717170675812450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123102219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116520 + ... + 125789.

It is an arithmetic number, because the mean of its divisors is an integer number (81900780).

Almost surely, 2^1123102215 is an apocalyptic number.

1123102215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123102215 is a deficient number, since it is larger than the sum of its proper divisors (842516505).

1123102215 is a wasteful number, since it uses less digits than its factorization.

1123102215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242423 (or 242420 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1123102215 is about 33512.7172130223. The cubic root of 1123102215 is about 1039.4567598674.

Adding to 1123102215 its reverse (5122013211), we get a palindrome (6245115426).

The spelling of 1123102215 in words is "one billion, one hundred twenty-three million, one hundred two thousand, two hundred fifteen".