143243022121 has 4 divisors (see below), whose sum is σ = 144273547600. Its totient is φ = 142212496644.

The previous prime is 143243022107. The next prime is 143243022133. The reversal of 143243022121 is 121220342341.

143243022121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143243022121 - 2⁹ = 143243021609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143243022521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515262531 + ... + 515262808.

It is an arithmetic number, because the mean of its divisors is an integer number (36068386900).

Almost surely, 2^143243022121 is an apocalyptic number.

It is an amenable number.

143243022121 is a deficient number, since it is larger than the sum of its proper divisors (1030525479).

143243022121 is a wasteful number, since it uses less digits than its factorization.

143243022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030525478.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 143243022121 its reverse (121220342341), we get a palindrome (264463364462).

The spelling of 143243022121 in words is "one hundred forty-three billion, two hundred forty-three million, twenty-two thousand, one hundred twenty-one".