1101003871 has 4 divisors (see below), whose sum is σ = 1201095144. Its totient is φ = 1000912600.

The previous prime is 1101003853. The next prime is 1101003889. The reversal of 1101003871 is 1783001011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1783001011 = 11 ⋅162091001.

It is an interprime number because it is at equal distance from previous prime (1101003853) and next prime (1101003889).

It is a cyclic number.

It is not a de Polignac number, because 1101003871 - 2¹⁵ = 1100971103 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101003671) 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, 50045620 + ... + 50045641.

It is an arithmetic number, because the mean of its divisors is an integer number (300273786).

Almost surely, 2^1101003871 is an apocalyptic number.

1101003871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101003871 is a deficient number, since it is larger than the sum of its proper divisors (100091273).

1101003871 is a wasteful number, since it uses less digits than its factorization.

1101003871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100091272.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 1101003871 is about 33181.3783770355. The cubic root of 1101003871 is about 1032.5940430300.

Adding to 1101003871 its reverse (1783001011), we get a palindrome (2884004882).

The spelling of 1101003871 in words is "one billion, one hundred one million, three thousand, eight hundred seventy-one".