143043221121 has 4 divisors (see below), whose sum is σ = 190724294832. Its totient is φ = 95362147412.

The previous prime is 143043221093. The next prime is 143043221161. The reversal of 143043221121 is 121122340341.

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 143043221121 - 2⁵ = 143043221089 is a prime.

It is a super-2 number, since 2×143043221121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143043221091 and 143043221100.

It is not an unprimeable number, because it can be changed into a prime (143043221161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23840536851 + ... + 23840536856.

It is an arithmetic number, because the mean of its divisors is an integer number (47681073708).

Almost surely, 2^143043221121 is an apocalyptic number.

It is an amenable number.

143043221121 is a deficient number, since it is larger than the sum of its proper divisors (47681073711).

143043221121 is an equidigital number, since it uses as much as digits as its factorization.

143043221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47681073710.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 143043221121 its reverse (121122340341), we get a palindrome (264165561462).

The spelling of 143043221121 in words is "one hundred forty-three billion, forty-three million, two hundred twenty-one thousand, one hundred twenty-one".