321231104 has 36 divisors (see below), whose sum is σ = 642357660. Its totient is φ = 160327680.

The previous prime is 321231103. The next prime is 321231137. The reversal of 321231104 is 401132123.

It can be written as a sum of positive squares in 2 ways, for example, as 270536704 + 50694400 = 16448^2 + 7120^2 .

It is not an unprimeable number, because it can be changed into a prime (321231103) 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, 260762 + ... + 261990.

Almost surely, 2^321231104 is an apocalyptic number.

It is an amenable number.

321231104 is a deficient number, since it is larger than the sum of its proper divisors (321126556).

321231104 is a wasteful number, since it uses less digits than its factorization.

321231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266 (or 2252 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321231104 is about 17922.9211904756. The cubic root of 321231104 is about 684.8664054741.

Adding to 321231104 its reverse (401132123), we get a palindrome (722363227).

The spelling of 321231104 in words is "three hundred twenty-one million, two hundred thirty-one thousand, one hundred four".