10200120011111 has 4 divisors (see below), whose sum is σ = 10232708254272. Its totient is φ = 10167531767952.

The previous prime is 10200120011093. The next prime is 10200120011117. The reversal of 10200120011111 is 11111002100201.

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 10200120011111 - 2⁴² = 5802073500007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10200120011092 and 10200120011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200120011117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16294121111 + ... + 16294121736.

It is an arithmetic number, because the mean of its divisors is an integer number (2558177063568).

Almost surely, 2^{10200120011111} is an apocalyptic number.

10200120011111 is a deficient number, since it is larger than the sum of its proper divisors (32588243161).

10200120011111 is an equidigital number, since it uses as much as digits as its factorization.

10200120011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32588243160.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10200120011111 its reverse (11111002100201), we get a palindrome (21311122111312).

The spelling of 10200120011111 in words is "ten trillion, two hundred billion, one hundred twenty million, eleven thousand, one hundred eleven".