1012102120543 has 2 divisors, whose sum is σ = 1012102120544. Its totient is φ = 1012102120542.

The previous prime is 1012102120541. The next prime is 1012102120591. The reversal of 1012102120543 is 3450212012101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012102120543 - 2¹ = 1012102120541 is a prime.

It is a super-2 number, since 2×1012102120543² (a number of 25 digits) contains 22 as substring.

Together with 1012102120541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012102120541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506051060271 + 506051060272.

It is an arithmetic number, because the mean of its divisors is an integer number (506051060272).

Almost surely, 2^{1012102120543} is an apocalyptic number.

1012102120543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012102120543 is an equidigital number, since it uses as much as digits as its factorization.

1012102120543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 1012102120543 its reverse (3450212012101), we get a palindrome (4462314132644).

The spelling of 1012102120543 in words is "one trillion, twelve billion, one hundred two million, one hundred twenty thousand, five hundred forty-three".