1123765032 has 128 divisors (see below), whose sum is σ = 3207052800. Its totient is φ = 325285632.

The previous prime is 1123765007. The next prime is 1123765037. The reversal of 1123765032 is 2305673211.

It is a super-2 number, since 2×1123765032² = 2525695694291922048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123765037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 965683 + ... + 966845.

It is an arithmetic number, because the mean of its divisors is an integer number (25055100).

Almost surely, 2^1123765032 is an apocalyptic number.

1123765032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123765032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603526400).

1123765032 is an abundant number, since it is smaller than the sum of its proper divisors (2083287768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123765032 is a wasteful number, since it uses less digits than its factorization.

1123765032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1363 counting only the distinct ones).

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

The square root of 1123765032 is about 33522.6047913941. The cubic root of 1123765032 is about 1039.6612037464.

The spelling of 1123765032 in words is "one billion, one hundred twenty-three million, seven hundred sixty-five thousand, thirty-two".