201040400305 has 8 divisors (see below), whose sum is σ = 241331773032. Its totient is φ = 160776791808.

The previous prime is 201040400291. The next prime is 201040400329. The reversal of 201040400305 is 503004040102.

It can be written as a sum of positive squares in 4 ways, for example, as 5789535921 + 195250864384 = 76089^2 + 441872^2 .

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 201040400305 - 2⁵ = 201040400273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6925122 + ... + 6954091.

It is an arithmetic number, because the mean of its divisors is an integer number (30166471629).

Almost surely, 2^201040400305 is an apocalyptic number.

It is an amenable number.

201040400305 is a deficient number, since it is larger than the sum of its proper divisors (40291372727).

201040400305 is a wasteful number, since it uses less digits than its factorization.

201040400305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13882115.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 201040400305 its reverse (503004040102), we get a palindrome (704044440407).

The spelling of 201040400305 in words is "two hundred one billion, forty million, four hundred thousand, three hundred five".