920111111110001 has 4 divisors (see below), whose sum is σ = 927134860049904. Its totient is φ = 913087362170100.

The previous prime is 920111111109991. The next prime is 920111111110073. The reversal of 920111111110001 is 100011111111029.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 920111111110001 - 2¹⁸ = 920111110847857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920111111119001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511874469755 + ... + 3511874470016.

It is an arithmetic number, because the mean of its divisors is an integer number (231783715012476).

Almost surely, 2^{920111111110001} is an apocalyptic number.

It is an amenable number.

920111111110001 is a deficient number, since it is larger than the sum of its proper divisors (7023748939903).

920111111110001 is a wasteful number, since it uses less digits than its factorization.

920111111110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023748939902.

The product of its (nonzero) digits is 18, while the sum is 20.

The spelling of 920111111110001 in words is "nine hundred twenty trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, one".