542143423406231 has 2 divisors, whose sum is σ = 542143423406232. Its totient is φ = 542143423406230.

The previous prime is 542143423406209. The next prime is 542143423406239. The reversal of 542143423406231 is 132604324341245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542143423406231 is a prime.

It is a super-2 number, since 2×542143423406231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542143423406239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271071711703115 + 271071711703116.

It is an arithmetic number, because the mean of its divisors is an integer number (271071711703116).

Almost surely, 2^{542143423406231} is an apocalyptic number.

542143423406231 is a deficient number, since it is larger than the sum of its proper divisors (1).

542143423406231 is an equidigital number, since it uses as much as digits as its factorization.

542143423406231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 44.

Adding to 542143423406231 its reverse (132604324341245), we get a palindrome (674747747747476).

The spelling of 542143423406231 in words is "five hundred forty-two trillion, one hundred forty-three billion, four hundred twenty-three million, four hundred six thousand, two hundred thirty-one".