101220103 has 8 divisors (see below), whose sum is σ = 103820976. Its totient is φ = 98625600.

The previous prime is 101220083. The next prime is 101220107. The reversal of 101220103 is 301022101.

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

It is a cyclic number.

It is not a de Polignac number, because 101220103 - 2¹³ = 101211911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61633 + ... + 63253.

It is an arithmetic number, because the mean of its divisors is an integer number (12977622).

Almost surely, 2^101220103 is an apocalyptic number.

101220103 is a deficient number, since it is larger than the sum of its proper divisors (2600873).

101220103 is a wasteful number, since it uses less digits than its factorization.

101220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 101220103 is about 10060.8201951928. The cubic root of 101220103 is about 466.0389963498.

Adding to 101220103 its reverse (301022101), we get a palindrome (402242204).

It can be divided in two parts, 1012 and 20103, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 101220103 in words is "one hundred one million, two hundred twenty thousand, one hundred three".