1020542427743 has 2 divisors, whose sum is σ = 1020542427744. Its totient is φ = 1020542427742.

The previous prime is 1020542427731. The next prime is 1020542427767. The reversal of 1020542427743 is 3477242450201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020542427743 - 2²⁰ = 1020541379167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020542427743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020542477743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510271213871 + 510271213872.

It is an arithmetic number, because the mean of its divisors is an integer number (510271213872).

Almost surely, 2^{1020542427743} is an apocalyptic number.

1020542427743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020542427743 is an equidigital number, since it uses as much as digits as its factorization.

1020542427743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 41.

Adding to 1020542427743 its reverse (3477242450201), we get a palindrome (4497784877944).

The spelling of 1020542427743 in words is "one trillion, twenty billion, five hundred forty-two million, four hundred twenty-seven thousand, seven hundred forty-three".