101103985 has 4 divisors (see below), whose sum is σ = 121324788. Its totient is φ = 80883184.

The previous prime is 101103983. The next prime is 101104007. The reversal of 101103985 is 589301101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589301101 = 23 ⋅25621787.

It can be written as a sum of positive squares in 2 ways, for example, as 63170704 + 37933281 = 7948^2 + 6159^2 .

It is a cyclic number.

It is not a de Polignac number, because 101103985 - 2¹ = 101103983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101103983) 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 3 ways as a sum of consecutive naturals, for example, 10110394 + ... + 10110403.

It is an arithmetic number, because the mean of its divisors is an integer number (30331197).

Almost surely, 2^101103985 is an apocalyptic number.

It is an amenable number.

101103985 is a deficient number, since it is larger than the sum of its proper divisors (20220803).

101103985 is an equidigital number, since it uses as much as digits as its factorization.

101103985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220802.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 101103985 is about 10055.0477373307. The cubic root of 101103985 is about 465.8607174597.

The spelling of 101103985 in words is "one hundred one million, one hundred three thousand, nine hundred eighty-five".