201123133130023 has 8 divisors (see below), whose sum is σ = 219027785432400. Its totient is φ = 183566143979328.

The previous prime is 201123133129999. The next prime is 201123133130041. The reversal of 201123133130023 is 320031331321102.

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 201123133130023 - 2¹³ = 201123133121831 is a prime.

It is a super-2 number, since 2×201123133130023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201123133130023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201123133130053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86915786713 + ... + 86915789026.

It is an arithmetic number, because the mean of its divisors is an integer number (27378473179050).

Almost surely, 2^{201123133130023} is an apocalyptic number.

201123133130023 is a deficient number, since it is larger than the sum of its proper divisors (17904652302377).

201123133130023 is a wasteful number, since it uses less digits than its factorization.

201123133130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173831575841.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 201123133130023 its reverse (320031331321102), we get a palindrome (521154464451125).

The spelling of 201123133130023 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred thirty-three million, one hundred thirty thousand, twenty-three".