1083931128 has 48 divisors (see below), whose sum is σ = 3355026480. Its totient is φ = 309694464.

The previous prime is 1083931127. The next prime is 1083931139. The reversal of 1083931128 is 8211393801.

1083931128 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1083931092 and 1083931101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083931127) 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, 1074825 + ... + 1075832.

It is an arithmetic number, because the mean of its divisors is an integer number (69896385).

Almost surely, 2^1083931128 is an apocalyptic number.

1083931128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1083931128 is an abundant number, since it is smaller than the sum of its proper divisors (2271095352).

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

1083931128 is a wasteful number, since it uses less digits than its factorization.

1083931128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150676 (or 2150669 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1083931128 is about 32923.1093306814. The cubic root of 1083931128 is about 1027.2289003646.

The spelling of 1083931128 in words is "one billion, eighty-three million, nine hundred thirty-one thousand, one hundred twenty-eight".