1130432320 has 56 divisors (see below), whose sum is σ = 2757528648. Its totient is φ = 441139200.

The previous prime is 1130432311. The next prime is 1130432321. The reversal of 1130432320 is 232340311.

It can be written as a sum of positive squares in 4 ways, for example, as 36675136 + 1093757184 = 6056^2 + 33072^2 .

It is a super-3 number, since 3×1130432320³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130432321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29961 + ... + 56200.

It is an arithmetic number, because the mean of its divisors is an integer number (49241583).

Almost surely, 2^1130432320 is an apocalyptic number.

1130432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130432320 is an abundant number, since it is smaller than the sum of its proper divisors (1627096328).

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

1130432320 is an equidigital number, since it uses as much as digits as its factorization.

1130432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86219 (or 86209 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1130432320 is about 33621.9023852012. The cubic root of 1130432320 is about 1041.7132510651.

Adding to 1130432320 its reverse (232340311), we get a palindrome (1362772631).

The spelling of 1130432320 in words is "one billion, one hundred thirty million, four hundred thirty-two thousand, three hundred twenty".