321001401 has 12 divisors (see below), whose sum is σ = 497879952. Its totient is φ = 183429288.

The previous prime is 321001393. The next prime is 321001427. The reversal of 321001401 is 104100123.

It is a happy number.

It is not a de Polignac number, because 321001401 - 2³ = 321001393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321001441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1091695 + ... + 1091988.

It is an arithmetic number, because the mean of its divisors is an integer number (41489996).

Almost surely, 2^321001401 is an apocalyptic number.

It is an amenable number.

321001401 is a deficient number, since it is larger than the sum of its proper divisors (176878551).

321001401 is a wasteful number, since it uses less digits than its factorization.

321001401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183700 (or 2183693 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 321001401 is about 17916.5119652236. The cubic root of 321001401 is about 684.7031238801.

Adding to 321001401 its reverse (104100123), we get a palindrome (425101524).

The spelling of 321001401 in words is "three hundred twenty-one million, one thousand, four hundred one".