321120412 has 24 divisors (see below), whose sum is σ = 595604016. Its totient is φ = 150966528.

The previous prime is 321120379. The next prime is 321120419. The reversal of 321120412 is 214021123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99943 + ... + 103105.

It is an arithmetic number, because the mean of its divisors is an integer number (24816834).

Almost surely, 2^321120412 is an apocalyptic number.

It is an amenable number.

321120412 is a deficient number, since it is larger than the sum of its proper divisors (274483604).

321120412 is a wasteful number, since it uses less digits than its factorization.

321120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 321120412 is about 17919.8329233283. The cubic root of 321120412 is about 684.7877311277.

Adding to 321120412 its reverse (214021123), we get a palindrome (535141535).

The spelling of 321120412 in words is "three hundred twenty-one million, one hundred twenty thousand, four hundred twelve".