20102485338043 has 2 divisors, whose sum is σ = 20102485338044. Its totient is φ = 20102485338042.

The previous prime is 20102485338037. The next prime is 20102485338053. The reversal of 20102485338043 is 34083358420102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102485338043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102485338053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051242669021 + 10051242669022.

It is an arithmetic number, because the mean of its divisors is an integer number (10051242669022).

Almost surely, 2^{20102485338043} is an apocalyptic number.

20102485338043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102485338043 is an equidigital number, since it uses as much as digits as its factorization.

20102485338043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 20102485338043 in words is "twenty trillion, one hundred two billion, four hundred eighty-five million, three hundred thirty-eight thousand, forty-three".