201230134321 has 8 divisors (see below), whose sum is σ = 211581714600. Its totient is φ = 191106061440.

The previous prime is 201230134283. The next prime is 201230134351. The reversal of 201230134321 is 123431032102.

It can be written as a sum of positive squares in 4 ways, for example, as 13339095025 + 187891039296 = 115495^2 + 433464^2 .

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 201230134321 - 2¹¹ = 201230132273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201230134292 and 201230134301.

It is not an unprimeable number, because it can be changed into a prime (201230134351) 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, 56875036 + ... + 56878573.

It is an arithmetic number, because the mean of its divisors is an integer number (26447714325).

Almost surely, 2^201230134321 is an apocalyptic number.

It is an amenable number.

201230134321 is a deficient number, since it is larger than the sum of its proper divisors (10351580279).

201230134321 is a wasteful number, since it uses less digits than its factorization.

201230134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113753699.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201230134321 its reverse (123431032102), we get a palindrome (324661166423).

The spelling of 201230134321 in words is "two hundred one billion, two hundred thirty million, one hundred thirty-four thousand, three hundred twenty-one".