1103213871 has 16 divisors (see below), whose sum is σ = 1641600000. Its totient is φ = 732231864.

The previous prime is 1103213869. The next prime is 1103213873. The reversal of 1103213871 is 1783123011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1103213869) and next prime (1103213873).

It is not a de Polignac number, because 1103213871 - 2¹ = 1103213869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103213873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83871 + ... + 96128.

It is an arithmetic number, because the mean of its divisors is an integer number (102600000).

Almost surely, 2^1103213871 is an apocalyptic number.

1103213871 is a deficient number, since it is larger than the sum of its proper divisors (538386129).

1103213871 is a wasteful number, since it uses less digits than its factorization.

1103213871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180235 (or 180229 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1103213871 is about 33214.6634937041. The cubic root of 1103213871 is about 1033.2844758609.

Adding to 1103213871 its reverse (1783123011), we get a palindrome (2886336882).

The spelling of 1103213871 in words is "one billion, one hundred three million, two hundred thirteen thousand, eight hundred seventy-one".