143120210421 has 4 divisors (see below), whose sum is σ = 190826947232. Its totient is φ = 95413473612.

The previous prime is 143120210357. The next prime is 143120210423. The reversal of 143120210421 is 124012021341.

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 not a de Polignac number, because 143120210421 - 2⁶ = 143120210357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143120210423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23853368401 + ... + 23853368406.

It is an arithmetic number, because the mean of its divisors is an integer number (47706736808).

Almost surely, 2^143120210421 is an apocalyptic number.

It is an amenable number.

143120210421 is a deficient number, since it is larger than the sum of its proper divisors (47706736811).

143120210421 is an equidigital number, since it uses as much as digits as its factorization.

143120210421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47706736810.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 143120210421 its reverse (124012021341), we get a palindrome (267132231762).

The spelling of 143120210421 in words is "one hundred forty-three billion, one hundred twenty million, two hundred ten thousand, four hundred twenty-one".