103218377 has 2 divisors, whose sum is σ = 103218378. Its totient is φ = 103218376.

The previous prime is 103218371. The next prime is 103218389. The reversal of 103218377 is 773812301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101525776 + 1692601 = 10076^2 + 1301^2 .

It is an emirp because it is prime and its reverse (773812301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103218377 - 2⁸ = 103218121 is a prime.

It is not a weakly prime, because it can be changed into another prime (103218371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51609188 + 51609189.

It is an arithmetic number, because the mean of its divisors is an integer number (51609189).

Almost surely, 2^103218377 is an apocalyptic number.

It is an amenable number.

103218377 is a deficient number, since it is larger than the sum of its proper divisors (1).

103218377 is an equidigital number, since it uses as much as digits as its factorization.

103218377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 103218377 is about 10159.6445311832. The cubic root of 103218377 is about 469.0858601101.

The spelling of 103218377 in words is "one hundred three million, two hundred eighteen thousand, three hundred seventy-seven".