201044004023 has 4 divisors (see below), whose sum is σ = 202054275600. Its totient is φ = 200033732448.

The previous prime is 201044004017. The next prime is 201044004067. The reversal of 201044004023 is 320400440102.

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 201044004023 - 2⁶ = 201044003959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201044003986 and 201044004004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044004823) 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, 505135490 + ... + 505135887.

It is an arithmetic number, because the mean of its divisors is an integer number (50513568900).

Almost surely, 2^201044004023 is an apocalyptic number.

201044004023 is a deficient number, since it is larger than the sum of its proper divisors (1010271577).

201044004023 is a wasteful number, since it uses less digits than its factorization.

201044004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010271576.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 201044004023 its reverse (320400440102), we get a palindrome (521444444125).

The spelling of 201044004023 in words is "two hundred one billion, forty-four million, four thousand, twenty-three".