143443300321421 has 16 divisors (see below), whose sum is σ = 147371156112576. Its totient is φ = 139518134574336.

The previous prime is 143443300321361. The next prime is 143443300321429. The reversal of 143443300321421 is 124123003344341.

It is a cyclic number.

It is not a de Polignac number, because 143443300321421 - 2⁶ = 143443300321357 is a prime.

It is a super-2 number, since 2×143443300321421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143443300321429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3048264725 + ... + 3048311781.

It is an arithmetic number, because the mean of its divisors is an integer number (9210697257036).

Almost surely, 2^{143443300321421} is an apocalyptic number.

It is an amenable number.

143443300321421 is a deficient number, since it is larger than the sum of its proper divisors (3927855791155).

143443300321421 is a wasteful number, since it uses less digits than its factorization.

143443300321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73868.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 143443300321421 its reverse (124123003344341), we get a palindrome (267566303665762).

The spelling of 143443300321421 in words is "one hundred forty-three trillion, four hundred forty-three billion, three hundred million, three hundred twenty-one thousand, four hundred twenty-one".