1131404232 has 64 divisors (see below), whose sum is σ = 3235374720. Its totient is φ = 322979328.

The previous prime is 1131404189. The next prime is 1131404243. The reversal of 1131404232 is 2324041311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1131404199 and 1131404208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266188 + ... + 270404.

It is an arithmetic number, because the mean of its divisors is an integer number (50552730).

Almost surely, 2^1131404232 is an apocalyptic number.

1131404232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131404232 is an abundant number, since it is smaller than the sum of its proper divisors (2103970488).

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

1131404232 is a wasteful number, since it uses less digits than its factorization.

1131404232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830 (or 5826 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1131404232 is about 33636.3528343963. The cubic root of 1131404232 is about 1042.0117102094.

Adding to 1131404232 its reverse (2324041311), we get a palindrome (3455445543).

The spelling of 1131404232 in words is "one billion, one hundred thirty-one million, four hundred four thousand, two hundred thirty-two".