201043242423 has 12 divisors (see below), whose sum is σ = 291386910360. Its totient is φ = 133571390256.

The previous prime is 201043242419. The next prime is 201043242457. The reversal of 201043242423 is 324242340102.

201043242423 is a `hidden beast` number, since 201 + 0 + 4 + 32 + 4 + 2 + 423 = 666.

It is not a de Polignac number, because 201043242423 - 2² = 201043242419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201043242473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38117053 + ... + 38122326.

It is an arithmetic number, because the mean of its divisors is an integer number (24282242530).

Almost surely, 2^201043242423 is an apocalyptic number.

201043242423 is a deficient number, since it is larger than the sum of its proper divisors (90343667937).

201043242423 is a wasteful number, since it uses less digits than its factorization.

201043242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76239678 (or 76239675 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201043242423 its reverse (324242340102), we get a palindrome (525285582525).

The spelling of 201043242423 in words is "two hundred one billion, forty-three million, two hundred forty-two thousand, four hundred twenty-three".