201142002423 has 8 divisors (see below), whose sum is σ = 270236583936. Its totient is φ = 133071044600.

The previous prime is 201142002409. The next prime is 201142002491. The reversal of 201142002423 is 324200241102.

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 201142002423 - 2⁹ = 201142001911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201142002423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142082423) 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, 255905463 + ... + 255906248.

It is an arithmetic number, because the mean of its divisors is an integer number (33779572992).

Almost surely, 2^201142002423 is an apocalyptic number.

201142002423 is a deficient number, since it is larger than the sum of its proper divisors (69094581513).

201142002423 is a wasteful number, since it uses less digits than its factorization.

201142002423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511811845.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 201142002423 its reverse (324200241102), we get a palindrome (525342243525).

The spelling of 201142002423 in words is "two hundred one billion, one hundred forty-two million, two thousand, four hundred twenty-three".