201128237917 has 8 divisors (see below), whose sum is σ = 207401815296. Its totient is φ = 194937754512.

The previous prime is 201128237909. The next prime is 201128237941. The reversal of 201128237917 is 719732821102.

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 201128237917 - 2³ = 201128237909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201128237417) 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, 20768578 + ... + 20778259.

It is an arithmetic number, because the mean of its divisors is an integer number (25925226912).

Almost surely, 2^201128237917 is an apocalyptic number.

It is an amenable number.

201128237917 is a deficient number, since it is larger than the sum of its proper divisors (6273577379).

201128237917 is a wasteful number, since it uses less digits than its factorization.

201128237917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41546987.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 201128237917 in words is "two hundred one billion, one hundred twenty-eight million, two hundred thirty-seven thousand, nine hundred seventeen".