1321232132 has 12 divisors (see below), whose sum is σ = 2522352336. Its totient is φ = 600560040.

The previous prime is 1321232119. The next prime is 1321232179. The reversal of 1321232132 is 2312321231.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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, 15013958 + ... + 15014045.

It is an arithmetic number, because the mean of its divisors is an integer number (210196028).

Almost surely, 2^1321232132 is an apocalyptic number.

It is an amenable number.

1321232132 is a deficient number, since it is larger than the sum of its proper divisors (1201120204).

1321232132 is a wasteful number, since it uses less digits than its factorization.

1321232132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30028018 (or 30028016 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1321232132 is about 36348.7569526112. The cubic root of 1321232132 is about 1097.3025177613.

Adding to 1321232132 its reverse (2312321231), we get a palindrome (3633553363).

The spelling of 1321232132 in words is "one billion, three hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty-two".