1103113143 has 24 divisors (see below), whose sum is σ = 1813818240. Its totient is φ = 639484560.

The previous prime is 1103113129. The next prime is 1103113157. The reversal of 1103113143 is 3413113011.

It is an interprime number because it is at equal distance from previous prime (1103113129) and next prime (1103113157).

It is not a de Polignac number, because 1103113143 - 2⁹ = 1103112631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103113043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239953 + ... + 244506.

It is an arithmetic number, because the mean of its divisors is an integer number (75575760).

Almost surely, 2^1103113143 is an apocalyptic number.

1103113143 is a deficient number, since it is larger than the sum of its proper divisors (710705097).

1103113143 is a wasteful number, since it uses less digits than its factorization.

1103113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484499 (or 484496 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1103113143 is about 33213.1471408537. The cubic root of 1103113143 is about 1033.2530271849.

Adding to 1103113143 its reverse (3413113011), we get a palindrome (4516226154).

The spelling of 1103113143 in words is "one billion, one hundred three million, one hundred thirteen thousand, one hundred forty-three".