143121230 has 32 divisors (see below), whose sum is σ = 295750656. Its totient is φ = 48848544.

The previous prime is 143121229. The next prime is 143121233. The reversal of 143121230 is 32121341.

It is a junction number, because it is equal to n+sod(n) for n = 143121199 and 143121208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143121233) 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, 11387 + ... + 20393.

It is an arithmetic number, because the mean of its divisors is an integer number (9242208).

Almost surely, 2^143121230 is an apocalyptic number.

143121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143121230 is an abundant number, since it is smaller than the sum of its proper divisors (152629426).

143121230 is a wasteful number, since it uses less digits than its factorization.

143121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 143121230 is about 11963.3285501987. The cubic root of 143121230 is about 523.0798854803.

Adding to 143121230 its reverse (32121341), we get a palindrome (175242571).

The spelling of 143121230 in words is "one hundred forty-three million, one hundred twenty-one thousand, two hundred thirty".