201320643061 has 8 divisors (see below), whose sum is σ = 211920901920. Its totient is φ = 190720827792.

The previous prime is 201320643019. The next prime is 201320643151. The reversal of 201320643061 is 160346023102.

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 201320643061 - 2¹⁷ = 201320511989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201320643001) 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, 1247346 + ... + 1399468.

It is an arithmetic number, because the mean of its divisors is an integer number (26490112740).

Almost surely, 2^201320643061 is an apocalyptic number.

It is an amenable number.

201320643061 is a deficient number, since it is larger than the sum of its proper divisors (10600258859).

201320643061 is a wasteful number, since it uses less digits than its factorization.

201320643061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221795.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 201320643061 its reverse (160346023102), we get a palindrome (361666666163).

The spelling of 201320643061 in words is "two hundred one billion, three hundred twenty million, six hundred forty-three thousand, sixty-one".