143421103 has 16 divisors (see below), whose sum is σ = 167086080. Its totient is φ = 120571776.

The previous prime is 143421079. The next prime is 143421119. The reversal of 143421103 is 301124341.

It is a cyclic number.

It is not a de Polignac number, because 143421103 - 2⁹ = 143420591 is a prime.

It is a super-2 number, since 2×143421103² = 41139225571473218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143421143) 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, 91575 + ... + 93127.

It is an arithmetic number, because the mean of its divisors is an integer number (10442880).

Almost surely, 2^143421103 is an apocalyptic number.

143421103 is a deficient number, since it is larger than the sum of its proper divisors (23664977).

143421103 is a wasteful number, since it uses less digits than its factorization.

143421103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143421103 is about 11975.8550007922. The cubic root of 143421103 is about 523.4449561982. Note that the first 3 decimals are identical.

Adding to 143421103 its reverse (301124341), we get a palindrome (444545444).

The spelling of 143421103 in words is "one hundred forty-three million, four hundred twenty-one thousand, one hundred three".