143221235234 has 32 divisors (see below), whose sum is σ = 267867565056. Its totient is φ = 55795219920.

The previous prime is 143221235177. The next prime is 143221235237. The reversal of 143221235234 is 432532122341.

It is a self number, because there is not a number n which added to its sum of digits gives 143221235234.

It is not an unprimeable number, because it can be changed into a prime (143221235237) 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, 1863149 + ... + 1938495.

It is an arithmetic number, because the mean of its divisors is an integer number (8370861408).

Almost surely, 2^143221235234 is an apocalyptic number.

143221235234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

143221235234 is a deficient number, since it is larger than the sum of its proper divisors (124646329822).

143221235234 is a wasteful number, since it uses less digits than its factorization.

143221235234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87710.

The product of its digits is 34560, while the sum is 32.

Adding to 143221235234 its reverse (432532122341), we get a palindrome (575753357575).

The spelling of 143221235234 in words is "one hundred forty-three billion, two hundred twenty-one million, two hundred thirty-five thousand, two hundred thirty-four".