20012133202123 has 8 divisors (see below), whose sum is σ = 20627002688688. Its totient is φ = 19404057853824.

The previous prime is 20012133202067. The next prime is 20012133202129. The reversal of 20012133202123 is 32120233121002.

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 20012133202123 - 2⁴¹ = 17813109946571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012133202094 and 20012133202103.

It is not an unprimeable number, because it can be changed into a prime (20012133202129) 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, 1698528586 + ... + 1698540367.

It is an arithmetic number, because the mean of its divisors is an integer number (2578375336086).

Almost surely, 2^{20012133202123} is an apocalyptic number.

20012133202123 is a deficient number, since it is larger than the sum of its proper divisors (614869486565).

20012133202123 is a wasteful number, since it uses less digits than its factorization.

20012133202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397069133.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20012133202123 its reverse (32120233121002), we get a palindrome (52132366323125).

The spelling of 20012133202123 in words is "twenty trillion, twelve billion, one hundred thirty-three million, two hundred two thousand, one hundred twenty-three".