20050101612011 has 8 divisors (see below), whose sum is σ = 21229858432080. Its totient is φ = 18870382467328.

The previous prime is 20050101611993. The next prime is 20050101612019. The reversal of 20050101612011 is 11021610105002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20050101612011 is a prime.

It is a super-2 number, since 2×20050101612011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20050101612019) 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, 8319506 + ... + 10455351.

It is an arithmetic number, because the mean of its divisors is an integer number (2653732304010).

Almost surely, 2^{20050101612011} is an apocalyptic number.

20050101612011 is a deficient number, since it is larger than the sum of its proper divisors (1179756820069).

20050101612011 is a wasteful number, since it uses less digits than its factorization.

20050101612011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18837693.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 20050101612011 its reverse (11021610105002), we get a palindrome (31071711717013).

The spelling of 20050101612011 in words is "twenty trillion, fifty billion, one hundred one million, six hundred twelve thousand, eleven".