1312041132 has 48 divisors (see below), whose sum is σ = 3404459520. Its totient is φ = 436977936.

The previous prime is 1312041121. The next prime is 1312041139. The reversal of 1312041132 is 2311402131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1312041139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143193 + ... + 152079.

It is an arithmetic number, because the mean of its divisors is an integer number (70926240).

Almost surely, 2^1312041132 is an apocalyptic number.

1312041132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312041132 is an abundant number, since it is smaller than the sum of its proper divisors (2092418388).

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

1312041132 is a wasteful number, since it uses less digits than its factorization.

1312041132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267 (or 10259 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1312041132 is about 36222.1083317910. The cubic root of 1312041132 is about 1094.7521751033.

Adding to 1312041132 its reverse (2311402131), we get a palindrome (3623443263).

The spelling of 1312041132 in words is "one billion, three hundred twelve million, forty-one thousand, one hundred thirty-two".