2118542125103 has 2 divisors, whose sum is σ = 2118542125104. Its totient is φ = 2118542125102.

The previous prime is 2118542124977. The next prime is 2118542125181. The reversal of 2118542125103 is 3015212458112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2118542125103 - 2²² = 2118537930799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118542125703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059271062551 + 1059271062552.

It is an arithmetic number, because the mean of its divisors is an integer number (1059271062552).

Almost surely, 2^{2118542125103} is an apocalyptic number.

2118542125103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118542125103 is an equidigital number, since it uses as much as digits as its factorization.

2118542125103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 2118542125103 in words is "two trillion, one hundred eighteen billion, five hundred forty-two million, one hundred twenty-five thousand, one hundred three".