143123221345 has 8 divisors (see below), whose sum is σ = 184959239976. Its totient is φ = 105690994176.

The previous prime is 143123221333. The next prime is 143123221421. The reversal of 143123221345 is 543122321341.

It can be written as a sum of positive squares in 4 ways, for example, as 1876535761 + 141246685584 = 43319^2 + 375828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143123221345 - 2⁵ = 143123221313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1100947792 + ... + 1100947921.

It is an arithmetic number, because the mean of its divisors is an integer number (23119904997).

Almost surely, 2^143123221345 is an apocalyptic number.

It is an amenable number.

143123221345 is a deficient number, since it is larger than the sum of its proper divisors (41836018631).

143123221345 is a wasteful number, since it uses less digits than its factorization.

143123221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201895731.

The product of its digits is 17280, while the sum is 31.

Adding to 143123221345 its reverse (543122321341), we get a palindrome (686245542686).

The spelling of 143123221345 in words is "one hundred forty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred forty-five".