1302231132 has 54 divisors (see below), whose sum is σ = 3383249688. Its totient is φ = 422329248.

The previous prime is 1302231121. The next prime is 1302231137. The reversal of 1302231132 is 2311322031.

1302231132 is a `hidden beast` number, since 1 + 302 + 231 + 132 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302231137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36073 + ... + 62495.

It is an arithmetic number, because the mean of its divisors is an integer number (62652772).

Almost surely, 2^1302231132 is an apocalyptic number.

1302231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302231132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691624844).

1302231132 is an abundant number, since it is smaller than the sum of its proper divisors (2081018556).

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

1302231132 is a wasteful number, since it uses less digits than its factorization.

1302231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26507 (or 26465 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1302231132 is about 36086.4397246389. The cubic root of 1302231132 is about 1092.0168958461.

Adding to 1302231132 its reverse (2311322031), we get a palindrome (3613553163).

The spelling of 1302231132 in words is "one billion, three hundred two million, two hundred thirty-one thousand, one hundred thirty-two".