201536288423 has 4 divisors (see below), whose sum is σ = 208485815640. Its totient is φ = 194586761208.

The previous prime is 201536288419. The next prime is 201536288453. The reversal of 201536288423 is 324882635102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201536288423 - 2² = 201536288419 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 (201536288453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3474763565 + ... + 3474763622.

It is an arithmetic number, because the mean of its divisors is an integer number (52121453910).

Almost surely, 2^201536288423 is an apocalyptic number.

201536288423 is a deficient number, since it is larger than the sum of its proper divisors (6949527217).

201536288423 is an equidigital number, since it uses as much as digits as its factorization.

201536288423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949527216.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 201536288423 in words is "two hundred one billion, five hundred thirty-six million, two hundred eighty-eight thousand, four hundred twenty-three".