1131304040 has 16 divisors (see below), whose sum is σ = 2545434180. Its totient is φ = 452521600.

The previous prime is 1131304039. The next prime is 1131304051. The reversal of 1131304040 is 404031311.

It can be written as a sum of positive squares in 2 ways, for example, as 1089132004 + 42172036 = 33002^2 + 6494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14141261 + ... + 14141340.

Almost surely, 2^1131304040 is an apocalyptic number.

1131304040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131304040 is an abundant number, since it is smaller than the sum of its proper divisors (1414130140).

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

1131304040 is a wasteful number, since it uses less digits than its factorization.

1131304040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28282612 (or 28282608 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1131304040 is about 33634.8634604037. The cubic root of 1131304040 is about 1041.9809506994.

Adding to 1131304040 its reverse (404031311), we get a palindrome (1535335351).

The spelling of 1131304040 in words is "one billion, one hundred thirty-one million, three hundred four thousand, forty".