321111401 has 8 divisors (see below), whose sum is σ = 353855040. Its totient is φ = 289516752.

The previous prime is 321111397. The next prime is 321111407. The reversal of 321111401 is 104111123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321111401 - 2² = 321111397 is a prime.

It is a super-2 number, since 2×321111401² = 206225063704365602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321111407) 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, 286661 + ... + 287778.

It is an arithmetic number, because the mean of its divisors is an integer number (44231880).

Almost surely, 2^321111401 is an apocalyptic number.

It is an amenable number.

321111401 is a deficient number, since it is larger than the sum of its proper divisors (32743639).

321111401 is a wasteful number, since it uses less digits than its factorization.

321111401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574495.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 321111401 is about 17919.5814962292. The cubic root of 321111401 is about 684.7813257631.

Adding to 321111401 its reverse (104111123), we get a palindrome (425222524).

The spelling of 321111401 in words is "three hundred twenty-one million, one hundred eleven thousand, four hundred one".