103920611 has 2 divisors, whose sum is σ = 103920612. Its totient is φ = 103920610.

The previous prime is 103920599. The next prime is 103920667. The reversal of 103920611 is 116029301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103920611 is a prime.

It is a super-2 number, since 2×103920611² = 21598986781226642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103920211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51960305 + 51960306.

It is an arithmetic number, because the mean of its divisors is an integer number (51960306).

Almost surely, 2^103920611 is an apocalyptic number.

103920611 is a deficient number, since it is larger than the sum of its proper divisors (1).

103920611 is an equidigital number, since it uses as much as digits as its factorization.

103920611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 103920611 is about 10194.1459181238. The cubic root of 103920611 is about 470.1472467568.

Adding to 103920611 its reverse (116029301), we get a palindrome (219949912).

The spelling of 103920611 in words is "one hundred three million, nine hundred twenty thousand, six hundred eleven".