201321202330 has 16 divisors (see below), whose sum is σ = 362644447464. Its totient is φ = 80469306880.

The previous prime is 201321202321. The next prime is 201321202337. The reversal of 201321202330 is 33202123102.

It can be written as a sum of positive squares in 4 ways, for example, as 147492098209 + 53829104121 = 384047^2 + 232011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201321202298 and 201321202307.

It is not an unprimeable number, because it can be changed into a prime (201321202337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7382467 + ... + 7409686.

Almost surely, 2^201321202330 is an apocalyptic number.

201321202330 is a deficient number, since it is larger than the sum of its proper divisors (161323245134).

201321202330 is a wasteful number, since it uses less digits than its factorization.

201321202330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14793521.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201321202330 its reverse (33202123102), we get a palindrome (234523325432).

It can be divided in two parts, 201321 and 202330, that added together give a triangular number (403651 = T₈₉₈).

The spelling of 201321202330 in words is "two hundred one billion, three hundred twenty-one million, two hundred two thousand, three hundred thirty".