20132012123 has 2 divisors, whose sum is σ = 20132012124. Its totient is φ = 20132012122.

The previous prime is 20132012111. The next prime is 20132012137. The reversal of 20132012123 is 32121023102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20132012123 - 2⁴ = 20132012107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20132012623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066006061 + 10066006062.

It is an arithmetic number, because the mean of its divisors is an integer number (10066006062).

Almost surely, 2^20132012123 is an apocalyptic number.

20132012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132012123 is an equidigital number, since it uses as much as digits as its factorization.

20132012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20132012123 its reverse (32121023102), we get a palindrome (52253035225).

The spelling of 20132012123 in words is "twenty billion, one hundred thirty-two million, twelve thousand, one hundred twenty-three".