1123032657 has 16 divisors (see below), whose sum is σ = 1519311168. Its totient is φ = 737740800.

The previous prime is 1123032653. The next prime is 1123032667. The reversal of 1123032657 is 7562303211.

It is not a de Polignac number, because 1123032657 - 2² = 1123032653 is a prime.

It is a super-2 number, since 2×1123032657² = 2522404697376959298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123032653) 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 15 ways as a sum of consecutive naturals, for example, 349018 + ... + 352220.

It is an arithmetic number, because the mean of its divisors is an integer number (94956948).

Almost surely, 2^1123032657 is an apocalyptic number.

It is an amenable number.

1123032657 is a deficient number, since it is larger than the sum of its proper divisors (396278511).

1123032657 is a wasteful number, since it uses less digits than its factorization.

1123032657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1123032657 is about 33511.6794118110. The cubic root of 1123032657 is about 1039.4353002516.

Adding to 1123032657 its reverse (7562303211), we get a palindrome (8685335868).

It can be divided in two parts, 112303 and 2657, that added together give a triangular number (114960 = T₄₇₉).

The spelling of 1123032657 in words is "one billion, one hundred twenty-three million, thirty-two thousand, six hundred fifty-seven".