1131101232 has 40 divisors (see below), whose sum is σ = 2926948080. Its totient is φ = 376396800.

The previous prime is 1131101227. The next prime is 1131101263. The reversal of 1131101232 is 2321011311.

It is a happy 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, 9244 + ... + 48452.

It is an arithmetic number, because the mean of its divisors is an integer number (73173702).

Almost surely, 2^1131101232 is an apocalyptic number.

1131101232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131101232 is an abundant number, since it is smaller than the sum of its proper divisors (1795846848).

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

1131101232 is a wasteful number, since it uses less digits than its factorization.

1131101232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39821 (or 39815 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131101232 is about 33631.8484772990. The cubic root of 1131101232 is about 1041.9186819387.

Adding to 1131101232 its reverse (2321011311), we get a palindrome (3452112543).

The spelling of 1131101232 in words is "one billion, one hundred thirty-one million, one hundred one thousand, two hundred thirty-two".