2118451703 has 2 divisors, whose sum is σ = 2118451704. Its totient is φ = 2118451702.

The previous prime is 2118451679. The next prime is 2118451729. The reversal of 2118451703 is 3071548112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2118451703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2118451703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118451763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059225851 + 1059225852.

It is an arithmetic number, because the mean of its divisors is an integer number (1059225852).

Almost surely, 2^2118451703 is an apocalyptic number.

2118451703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118451703 is an equidigital number, since it uses as much as digits as its factorization.

2118451703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2118451703 is about 46026.6412309219. The cubic root of 2118451703 is about 1284.3188470609.

Adding to 2118451703 its reverse (3071548112), we get a palindrome (5189999815).

The spelling of 2118451703 in words is "two billion, one hundred eighteen million, four hundred fifty-one thousand, seven hundred three".