143220030231 has 4 divisors (see below), whose sum is σ = 190960040312. Its totient is φ = 95480020152.

The previous prime is 143220030227. The next prime is 143220030253. The reversal of 143220030231 is 132030022341.

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

It is not a de Polignac number, because 143220030231 - 2² = 143220030227 is a prime.

It is a super-2 number, since 2×143220030231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143220030198 and 143220030207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143220030281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23870005036 + ... + 23870005041.

It is an arithmetic number, because the mean of its divisors is an integer number (47740010078).

Almost surely, 2^143220030231 is an apocalyptic number.

143220030231 is a deficient number, since it is larger than the sum of its proper divisors (47740010081).

143220030231 is an equidigital number, since it uses as much as digits as its factorization.

143220030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47740010080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 143220030231 its reverse (132030022341), we get a palindrome (275250052572).

The spelling of 143220030231 in words is "one hundred forty-three billion, two hundred twenty million, thirty thousand, two hundred thirty-one".