321121132 has 12 divisors (see below), whose sum is σ = 562161600. Its totient is φ = 160503536.

The previous prime is 321121103. The next prime is 321121139. The reversal of 321121132 is 231121123.

It is a super-2 number, since 2×321121132² = 206237562833922848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321121139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7 + ... + 25342.

It is an arithmetic number, because the mean of its divisors is an integer number (46846800).

Almost surely, 2^321121132 is an apocalyptic number.

It is an amenable number.

321121132 is a deficient number, since it is larger than the sum of its proper divisors (241040468).

321121132 is a wasteful number, since it uses less digits than its factorization.

321121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28520 (or 28518 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 321121132 is about 17919.8530127900. The cubic root of 321121132 is about 684.7882429262.

Adding to 321121132 its reverse (231121123), we get a palindrome (552242255).

Subtracting from 321121132 its reverse (231121123), we obtain a palindrome (90000009).

The spelling of 321121132 in words is "three hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-two".