2011112020129 has 2 divisors, whose sum is σ = 2011112020130. Its totient is φ = 2011112020128.

The previous prime is 2011112020109. The next prime is 2011112020243. The reversal of 2011112020129 is 9210202111102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2005565792400 + 5546227729 = 1416180^2 + 74473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011112020129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011112020109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005556010064 + 1005556010065.

It is an arithmetic number, because the mean of its divisors is an integer number (1005556010065).

Almost surely, 2^{2011112020129} is an apocalyptic number.

It is an amenable number.

2011112020129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011112020129 is an equidigital number, since it uses as much as digits as its factorization.

2011112020129 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 22.

The spelling of 2011112020129 in words is "two trillion, eleven billion, one hundred twelve million, twenty thousand, one hundred twenty-nine".