143221421413 has 4 divisors (see below), whose sum is σ = 163681624480. Its totient is φ = 122761218348.

The previous prime is 143221421389. The next prime is 143221421417. The reversal of 143221421413 is 314124122341.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 314124122341 = 2287 ⋅137352043.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143221421413 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 (143221421417) 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, 10230101523 + ... + 10230101536.

It is an arithmetic number, because the mean of its divisors is an integer number (40920406120).

Almost surely, 2^143221421413 is an apocalyptic number.

It is an amenable number.

143221421413 is a deficient number, since it is larger than the sum of its proper divisors (20460203067).

143221421413 is an equidigital number, since it uses as much as digits as its factorization.

143221421413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20460203066.

The product of its digits is 4608, while the sum is 28.

Adding to 143221421413 its reverse (314124122341), we get a palindrome (457345543754).

The spelling of 143221421413 in words is "one hundred forty-three billion, two hundred twenty-one million, four hundred twenty-one thousand, four hundred thirteen".