143542303231 has 2 divisors, whose sum is σ = 143542303232. Its totient is φ = 143542303230.

The previous prime is 143542303133. The next prime is 143542303237. The reversal of 143542303231 is 132303245341.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (132303245341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143542303231 - 2⁹ = 143542302719 is a prime.

It is a super-2 number, since 2×143542303231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143542303193 and 143542303202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143542303237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71771151615 + 71771151616.

It is an arithmetic number, because the mean of its divisors is an integer number (71771151616).

Almost surely, 2^143542303231 is an apocalyptic number.

143542303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

143542303231 is an equidigital number, since it uses as much as digits as its factorization.

143542303231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 143542303231 its reverse (132303245341), we get a palindrome (275845548572).

The spelling of 143542303231 in words is "one hundred forty-three billion, five hundred forty-two million, three hundred three thousand, two hundred thirty-one".