20012111183 has 2 divisors, whose sum is σ = 20012111184. Its totient is φ = 20012111182.

The previous prime is 20012111173. The next prime is 20012111201. The reversal of 20012111183 is 38111121002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012111183 - 2¹⁰ = 20012110159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012111173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006055591 + 10006055592.

It is an arithmetic number, because the mean of its divisors is an integer number (10006055592).

Almost surely, 2^20012111183 is an apocalyptic number.

20012111183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012111183 is an equidigital number, since it uses as much as digits as its factorization.

20012111183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 20012111183 its reverse (38111121002), we get a palindrome (58123232185).

The spelling of 20012111183 in words is "twenty billion, twelve million, one hundred eleven thousand, one hundred eighty-three".