1123032987 has 12 divisors (see below), whose sum is σ = 1624977640. Its totient is φ = 747387648.

The previous prime is 1123032979. The next prime is 1123033007. The reversal of 1123032987 is 7892303211.

It is not a de Polignac number, because 1123032987 - 2³ = 1123032979 is a prime.

It is a super-2 number, since 2×1123032987² = 2522406179780284338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123032947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102937 + ... + 113322.

Almost surely, 2^1123032987 is an apocalyptic number.

1123032987 is a deficient number, since it is larger than the sum of its proper divisors (501944653).

1123032987 is a wasteful number, since it uses less digits than its factorization.

1123032987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216842 (or 216839 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1123032987 is about 33511.6843354672. The cubic root of 1123032987 is about 1039.4354020633.

The spelling of 1123032987 in words is "one billion, one hundred twenty-three million, thirty-two thousand, nine hundred eighty-seven".