1123140015 has 24 divisors (see below), whose sum is σ = 1948984128. Its totient is φ = 598328640.

The previous prime is 1123140001. The next prime is 1123140061. The reversal of 1123140015 is 5100413211.

It is a de Polignac number, because none of the positive numbers 2^k-1123140015 is a prime.

It is a super-2 number, since 2×1123140015² = 2522886986588400450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123140015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27297 + ... + 54693.

It is an arithmetic number, because the mean of its divisors is an integer number (81207672).

Almost surely, 2^1123140015 is an apocalyptic number.

1123140015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123140015 is a deficient number, since it is larger than the sum of its proper divisors (825844113).

1123140015 is a wasteful number, since it uses less digits than its factorization.

1123140015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28319 (or 28316 counting only the distinct ones).

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

The square root of 1123140015 is about 33513.2811732901. The cubic root of 1123140015 is about 1039.4684213244.

Adding to 1123140015 its reverse (5100413211), we get a palindrome (6223553226).

The spelling of 1123140015 in words is "one billion, one hundred twenty-three million, one hundred forty thousand, fifteen".