143221115434 has 4 divisors (see below), whose sum is σ = 214831673154. Its totient is φ = 71610557716.

The previous prime is 143221115423. The next prime is 143221115491. The reversal of 143221115434 is 434511122341.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133528122225 + 9692993209 = 365415^2 + 98453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143221115396 and 143221115405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35805278857 + ... + 35805278860.

Almost surely, 2^143221115434 is an apocalyptic number.

143221115434 is a deficient number, since it is larger than the sum of its proper divisors (71610557720).

143221115434 is an equidigital number, since it uses as much as digits as its factorization.

143221115434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71610557719.

The product of its digits is 11520, while the sum is 31.

Adding to 143221115434 its reverse (434511122341), we get a palindrome (577732237775).

The spelling of 143221115434 in words is "one hundred forty-three billion, two hundred twenty-one million, one hundred fifteen thousand, four hundred thirty-four".