201242342401 has 8 divisors (see below), whose sum is σ = 202459884264. Its totient is φ = 200026780800.

The previous prime is 201242342387. The next prime is 201242342423. The reversal of 201242342401 is 104243242102.

It can be written as a sum of positive squares in 4 ways, for example, as 140832076176 + 60410266225 = 375276^2 + 245785^2 .

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 201242342401 - 2¹¹ = 201242340353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201242342471) 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, 290950 + ... + 697951.

It is an arithmetic number, because the mean of its divisors is an integer number (25307485533).

Almost surely, 2^201242342401 is an apocalyptic number.

It is an amenable number.

201242342401 is a deficient number, since it is larger than the sum of its proper divisors (1217541863).

201242342401 is a wasteful number, since it uses less digits than its factorization.

201242342401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990131.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 201242342401 its reverse (104243242102), we get a palindrome (305485584503).

The spelling of 201242342401 in words is "two hundred one billion, two hundred forty-two million, three hundred forty-two thousand, four hundred one".