201201045345 has 48 divisors (see below), whose sum is σ = 349950483792. Its totient is φ = 106938040320.

The previous prime is 201201045343. The next prime is 201201045361. The reversal of 201201045345 is 543540102102.

201201045345 is a `hidden beast` number, since 2 + 0 + 1 + 20 + 104 + 534 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 41338615761 + 159862429584 = 203319^2 + 399828^2 .

It is not a de Polignac number, because 201201045345 - 2¹ = 201201045343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201201045341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15910225 + ... + 15922865.

It is an arithmetic number, because the mean of its divisors is an integer number (7290635079).

Almost surely, 2^201201045345 is an apocalyptic number.

It is an amenable number.

201201045345 is a deficient number, since it is larger than the sum of its proper divisors (148749438447).

201201045345 is a wasteful number, since it uses less digits than its factorization.

201201045345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13842 (or 13839 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 201201045345 its reverse (543540102102), we get a palindrome (744741147447).

The spelling of 201201045345 in words is "two hundred one billion, two hundred one million, forty-five thousand, three hundred forty-five".