1123042115 has 32 divisors (see below), whose sum is σ = 1508462592. Its totient is φ = 797040000.

The previous prime is 1123042073. The next prime is 1123042153. The reversal of 1123042115 is 5112403211.

It is not a de Polignac number, because 1123042115 - 2⁸ = 1123041859 is a prime.

It is a super-2 number, since 2×1123042115² = 2522447184127346450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302420 + ... + 306110.

It is an arithmetic number, because the mean of its divisors is an integer number (47139456).

Almost surely, 2^1123042115 is an apocalyptic number.

1123042115 is a deficient number, since it is larger than the sum of its proper divisors (385420477).

1123042115 is a wasteful number, since it uses less digits than its factorization.

1123042115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1123042115 is about 33511.8205264948. The cubic root of 1123042115 is about 1039.4382182289.

Adding to 1123042115 its reverse (5112403211), we get a palindrome (6235445326).

The spelling of 1123042115 in words is "one billion, one hundred twenty-three million, forty-two thousand, one hundred fifteen".