111020000100101 has 4 divisors (see below), whose sum is σ = 112840000101804. Its totient is φ = 109200000098400.

The previous prime is 111020000099971. The next prime is 111020000100173. The reversal of 111020000100101 is 101001000020111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63840259800100 + 47179740300001 = 7990010^2 + 6868751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020000100101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020000100181) 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, 910000000760 + ... + 910000000881.

It is an arithmetic number, because the mean of its divisors is an integer number (28210000025451).

Almost surely, 2^{111020000100101} is an apocalyptic number.

It is an amenable number.

111020000100101 is a deficient number, since it is larger than the sum of its proper divisors (1820000001703).

111020000100101 is an equidigital number, since it uses as much as digits as its factorization.

111020000100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820000001702.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111020000100101 its reverse (101001000020111), we get a palindrome (212021000120212).

The spelling of 111020000100101 in words is "one hundred eleven trillion, twenty billion, one hundred thousand, one hundred one".