20121134200023 has 8 divisors (see below), whose sum is σ = 26851247019648. Its totient is φ = 13402555423544.

The previous prime is 20121134200019. The next prime is 20121134200049. The reversal of 20121134200023 is 32000243112102.

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 20121134200023 - 2² = 20121134200019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121134200003) 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, 2883506715 + ... + 2883513692.

It is an arithmetic number, because the mean of its divisors is an integer number (3356405877456).

Almost surely, 2^{20121134200023} is an apocalyptic number.

20121134200023 is a deficient number, since it is larger than the sum of its proper divisors (6730112819625).

20121134200023 is a wasteful number, since it uses less digits than its factorization.

20121134200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767021573.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20121134200023 its reverse (32000243112102), we get a palindrome (52121377312125).

The spelling of 20121134200023 in words is "twenty trillion, one hundred twenty-one billion, one hundred thirty-four million, two hundred thousand, twenty-three".