118103681 has 2 divisors, whose sum is σ = 118103682. Its totient is φ = 118103680.

The previous prime is 118103669. The next prime is 118103693. The reversal of 118103681 is 186301811.

It is a balanced prime because it is at equal distance from previous prime (118103669) and next prime (118103693).

It can be written as a sum of positive squares in only one way, i.e., 116294656 + 1809025 = 10784^2 + 1345^2 .

It is an emirp because it is prime and its reverse (186301811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118103681 - 2⁶ = 118103617 is a prime.

It is a super-2 number, since 2×118103681² = 27896958931499522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118103651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59051840 + 59051841.

It is an arithmetic number, because the mean of its divisors is an integer number (59051841).

Almost surely, 2^118103681 is an apocalyptic number.

It is an amenable number.

118103681 is a deficient number, since it is larger than the sum of its proper divisors (1).

118103681 is an equidigital number, since it uses as much as digits as its factorization.

118103681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 118103681 is about 10867.5517482090. The cubic root of 118103681 is about 490.6304269269.

The spelling of 118103681 in words is "one hundred eighteen million, one hundred three thousand, six hundred eighty-one".