103920143 has 2 divisors, whose sum is σ = 103920144. Its totient is φ = 103920142.

The previous prime is 103920127. The next prime is 103920197. The reversal of 103920143 is 341029301.

It is a weak prime.

It is an emirp because it is prime and its reverse (341029301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103920143 - 2⁴ = 103920127 is a prime.

It is a super-2 number, since 2×103920143² = 21598792242280898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103920043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51960071 + 51960072.

It is an arithmetic number, because the mean of its divisors is an integer number (51960072).

Almost surely, 2^103920143 is an apocalyptic number.

103920143 is a deficient number, since it is larger than the sum of its proper divisors (1).

103920143 is an equidigital number, since it uses as much as digits as its factorization.

103920143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 103920143 is about 10194.1229637473. The cubic root of 103920143 is about 470.1465409961.

Adding to 103920143 its reverse (341029301), we get a palindrome (444949444).

The spelling of 103920143 in words is "one hundred three million, nine hundred twenty thousand, one hundred forty-three".