111020101020105 has 8 divisors (see below), whose sum is σ = 177632161632192. Its totient is φ = 59210720544048.

The previous prime is 111020101020043. The next prime is 111020101020113. The reversal of 111020101020105 is 501020101020111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111020101020105 - 2²² = 111020096825801 is a prime.

It is a super-2 number, since 2×111020101020105² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 7401340068007 = 111020101020105 / (1 + 1 + 1 + 0 + 2 + 0 + 1 + 0 + 1 + 0 + 2 + 0 + 1 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700670033989 + ... + 3700670034018.

It is an arithmetic number, because the mean of its divisors is an integer number (22204020204024).

Almost surely, 2^{111020101020105} is an apocalyptic number.

111020101020105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111020101020105 is a deficient number, since it is larger than the sum of its proper divisors (66612060612087).

111020101020105 is an equidigital number, since it uses as much as digits as its factorization.

111020101020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401340068015.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 111020101020105 its reverse (501020101020111), we get a palindrome (612040202040216).

The spelling of 111020101020105 in words is "one hundred eleven trillion, twenty billion, one hundred one million, twenty thousand, one hundred five".