143042121 has 12 divisors (see below), whose sum is σ = 206722672. Its totient is φ = 95312376.

The previous prime is 143042099. The next prime is 143042161. The reversal of 143042121 is 121240341.

It is not a de Polignac number, because 143042121 - 2⁶ = 143042057 is a prime.

It is a super-2 number, since 2×143042121² = 40922096760357282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143042094 and 143042103.

It is not an unprimeable number, because it can be changed into a prime (143042161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26190 + ... + 31176.

Almost surely, 2^143042121 is an apocalyptic number.

It is an amenable number.

143042121 is a deficient number, since it is larger than the sum of its proper divisors (63680551).

143042121 is a wasteful number, since it uses less digits than its factorization.

143042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 143042121 is about 11960.0217809166. The cubic root of 143042121 is about 522.9834917838.

Adding to 143042121 its reverse (121240341), we get a palindrome (264282462).

The spelling of 143042121 in words is "one hundred forty-three million, forty-two thousand, one hundred twenty-one".