111020020001 has 16 divisors (see below), whose sum is σ = 121876747200. Its totient is φ = 100292568000.

The previous prime is 111020019973. The next prime is 111020020063. The reversal of 111020020001 is 100020020111.

It is a cyclic number.

It is not a de Polignac number, because 111020020001 - 2³⁰ = 109946278177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020080001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102826 + ... + 1199276.

It is an arithmetic number, because the mean of its divisors is an integer number (7617296700).

Almost surely, 2^111020020001 is an apocalyptic number.

111020020001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111020020001 is a deficient number, since it is larger than the sum of its proper divisors (10856727199).

111020020001 is a wasteful number, since it uses less digits than its factorization.

111020020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97120.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 111020020001 its reverse (100020020111), we get a palindrome (211040040112).

The spelling of 111020020001 in words is "one hundred eleven billion, twenty million, twenty thousand, one".