321211364 has 6 divisors (see below), whose sum is σ = 562119894. Its totient is φ = 160605680.

The previous prime is 321211357. The next prime is 321211391. The reversal of 321211364 is 463112123.

It can be written as a sum of positive squares in only one way, i.e., 245172964 + 76038400 = 15658^2 + 8720^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40151417 + ... + 40151424.

It is an arithmetic number, because the mean of its divisors is an integer number (93686649).

Almost surely, 2^321211364 is an apocalyptic number.

It is an amenable number.

321211364 is a deficient number, since it is larger than the sum of its proper divisors (240908530).

321211364 is a wasteful number, since it uses less digits than its factorization.

321211364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80302845 (or 80302843 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 321211364 is about 17922.3704905350. The cubic root of 321211364 is about 684.8523765921.

Adding to 321211364 its reverse (463112123), we get a palindrome (784323487).

The spelling of 321211364 in words is "three hundred twenty-one million, two hundred eleven thousand, three hundred sixty-four".