1011201098543 has 2 divisors, whose sum is σ = 1011201098544. Its totient is φ = 1011201098542.

The previous prime is 1011201098497. The next prime is 1011201098597. The reversal of 1011201098543 is 3458901021101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011201098543 - 2¹⁰ = 1011201097519 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011201098443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505600549271 + 505600549272.

It is an arithmetic number, because the mean of its divisors is an integer number (505600549272).

Almost surely, 2^{1011201098543} is an apocalyptic number.

1011201098543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011201098543 is an equidigital number, since it uses as much as digits as its factorization.

1011201098543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 1011201098543 in words is "one trillion, eleven billion, two hundred one million, ninety-eight thousand, five hundred forty-three".