102542133536543 has 2 divisors, whose sum is σ = 102542133536544. Its totient is φ = 102542133536542.

The previous prime is 102542133536519. The next prime is 102542133536593. The reversal of 102542133536543 is 345635331245201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102542133536543 - 2¹⁶ = 102542133471007 is a prime.

It is a super-3 number, since 3×102542133536543³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102542133536593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51271066768271 + 51271066768272.

It is an arithmetic number, because the mean of its divisors is an integer number (51271066768272).

Almost surely, 2^{102542133536543} is an apocalyptic number.

102542133536543 is a deficient number, since it is larger than the sum of its proper divisors (1).

102542133536543 is an equidigital number, since it uses as much as digits as its factorization.

102542133536543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 102542133536543 in words is "one hundred two trillion, five hundred forty-two billion, one hundred thirty-three million, five hundred thirty-six thousand, five hundred forty-three".