143212430421 has 48 divisors (see below), whose sum is σ = 223246782720. Its totient is φ = 88137423360.

The previous prime is 143212430381. The next prime is 143212430429. The reversal of 143212430421 is 124034212341.

143212430421 is a `hidden beast` number, since 14 + 3 + 212 + 430 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 143212430421 - 2²¹ = 143210333269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143212430429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3329176 + ... + 3371918.

It is an arithmetic number, because the mean of its divisors is an integer number (4650974640).

Almost surely, 2^143212430421 is an apocalyptic number.

It is an amenable number.

143212430421 is a deficient number, since it is larger than the sum of its proper divisors (80034352299).

143212430421 is a wasteful number, since it uses less digits than its factorization.

143212430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43186 (or 43183 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 143212430421 its reverse (124034212341), we get a palindrome (267246642762).

The spelling of 143212430421 in words is "one hundred forty-three billion, two hundred twelve million, four hundred thirty thousand, four hundred twenty-one".