1103984639873 has 2 divisors, whose sum is σ = 1103984639874. Its totient is φ = 1103984639872.

The previous prime is 1103984639839. The next prime is 1103984639903. The reversal of 1103984639873 is 3789364893011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805859903809 + 298124736064 = 897697^2 + 546008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103984639873 - 2¹² = 1103984635777 is a prime.

It is a super-2 number, since 2×1103984639873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1103984639803) 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, 551992319936 + 551992319937.

It is an arithmetic number, because the mean of its divisors is an integer number (551992319937).

Almost surely, 2^{1103984639873} is an apocalyptic number.

It is an amenable number.

1103984639873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103984639873 is an equidigital number, since it uses as much as digits as its factorization.

1103984639873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 1103984639873 in words is "one trillion, one hundred three billion, nine hundred eighty-four million, six hundred thirty-nine thousand, eight hundred seventy-three".