20112002120011 has 4 divisors (see below), whose sum is σ = 21170528547400. Its totient is φ = 19053475692624.

The previous prime is 20112002119987. The next prime is 20112002120039. The reversal of 20112002120011 is 11002120021102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20112002120011 - 2⁹ = 20112002119499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112002119973 and 20112002120000.

It is not an unprimeable number, because it can be changed into a prime (20112002120611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529263213666 + ... + 529263213703.

It is an arithmetic number, because the mean of its divisors is an integer number (5292632136850).

Almost surely, 2^{20112002120011} is an apocalyptic number.

20112002120011 is a deficient number, since it is larger than the sum of its proper divisors (1058526427389).

20112002120011 is a wasteful number, since it uses less digits than its factorization.

20112002120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058526427388.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20112002120011 its reverse (11002120021102), we get a palindrome (31114122141113).

The spelling of 20112002120011 in words is "twenty trillion, one hundred twelve billion, two million, one hundred twenty thousand, eleven".