143320413111421 has 24 divisors (see below), whose sum is σ = 179552913520344. Its totient is φ = 113390901509760.

The previous prime is 143320413111409. The next prime is 143320413111461. The reversal of 143320413111421 is 124111314023341.

It can be written as a sum of positive squares in 4 ways, for example, as 2043084303225 + 141277328808196 = 1429365^2 + 11886014^2 .

It is not a de Polignac number, because 143320413111421 - 2¹⁵ = 143320413078653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143320413111461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7816891 + ... + 18647911.

It is an arithmetic number, because the mean of its divisors is an integer number (7481371396681).

Almost surely, 2^{143320413111421} is an apocalyptic number.

It is an amenable number.

143320413111421 is a deficient number, since it is larger than the sum of its proper divisors (36232500408923).

143320413111421 is a wasteful number, since it uses less digits than its factorization.

143320413111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851821 (or 10851814 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 143320413111421 its reverse (124111314023341), we get a palindrome (267431727134762).

The spelling of 143320413111421 in words is "one hundred forty-three trillion, three hundred twenty billion, four hundred thirteen million, one hundred eleven thousand, four hundred twenty-one".