321000201 has 12 divisors (see below), whose sum is σ = 463822528. Its totient is φ = 213928344.

The previous prime is 321000181. The next prime is 321000241. The reversal of 321000201 is 102000123.

It is a happy number.

It is not a de Polignac number, because 321000201 - 2⁷ = 321000073 is a prime.

It is a super-2 number, since 2×321000201² = 206082258084080802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321000241) 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, 47436 + ... + 53778.

Almost surely, 2^321000201 is an apocalyptic number.

It is an amenable number.

321000201 is a deficient number, since it is larger than the sum of its proper divisors (142822327).

321000201 is a wasteful number, since it uses less digits than its factorization.

321000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11972 (or 11969 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 321000201 is about 17916.4784765310. The cubic root of 321000201 is about 684.7022706701.

Adding to 321000201 its reverse (102000123), we get a palindrome (423000324).

It can be divided in two parts, 321000 and 201, that added together give a triangular number (321201 = T₈₀₁).

The spelling of 321000201 in words is "three hundred twenty-one million, two hundred one", and thus it is an aban number.