143321103 has 16 divisors (see below), whose sum is σ = 219650400. Its totient is φ = 92252160.

The previous prime is 143321099. The next prime is 143321131. The reversal of 143321103 is 301123341.

It is not a de Polignac number, because 143321103 - 2² = 143321099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143321603) 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, 90738 + ... + 92303.

It is an arithmetic number, because the mean of its divisors is an integer number (13728150).

Almost surely, 2^143321103 is an apocalyptic number.

143321103 is a deficient number, since it is larger than the sum of its proper divisors (76329297).

143321103 is a wasteful number, since it uses less digits than its factorization.

143321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183079 (or 183073 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 143321103 is about 11971.6792055250. The cubic root of 143321103 is about 523.3232710233.

Adding to 143321103 its reverse (301123341), we get a palindrome (444444444).

The spelling of 143321103 in words is "one hundred forty-three million, three hundred twenty-one thousand, one hundred three".