1131332320 has 48 divisors (see below), whose sum is σ = 2830001328. Its totient is φ = 425912320.

The previous prime is 1131332281. The next prime is 1131332353. The reversal of 1131332320 is 232331311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205246 + ... + 210685.

It is an arithmetic number, because the mean of its divisors is an integer number (58958361).

Almost surely, 2^1131332320 is an apocalyptic number.

1131332320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131332320 is an abundant number, since it is smaller than the sum of its proper divisors (1698669008).

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

1131332320 is a wasteful number, since it uses less digits than its factorization.

1131332320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415963 (or 415955 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1131332320 is about 33635.2838549045. The cubic root of 1131332320 is about 1041.9896330031.

Adding to 1131332320 its reverse (232331311), we get a palindrome (1363663631).

The spelling of 1131332320 in words is "one billion, one hundred thirty-one million, three hundred thirty-two thousand, three hundred twenty".