321231201112 has 8 divisors (see below), whose sum is σ = 602308502100. Its totient is φ = 160615600552.

The previous prime is 321231201097. The next prime is 321231201131. The reversal of 321231201112 is 211102132123.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 321231201112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20076950062 + ... + 20076950077.

Almost surely, 2^321231201112 is an apocalyptic number.

It is an amenable number.

321231201112 is a deficient number, since it is larger than the sum of its proper divisors (281077300988).

321231201112 is a wasteful number, since it uses less digits than its factorization.

321231201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40153900145 (or 40153900141 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 321231201112 its reverse (211102132123), we get a palindrome (532333333235).

It can be divided in two parts, 32123 and 1201112, that added together give a triangular number (1233235 = T₁₅₇₀).

The spelling of 321231201112 in words is "three hundred twenty-one billion, two hundred thirty-one million, two hundred one thousand, one hundred twelve".