1103763720989 has 2 divisors, whose sum is σ = 1103763720990. Its totient is φ = 1103763720988.

The previous prime is 1103763720953. The next prime is 1103763721007. The reversal of 1103763720989 is 9890273673011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1049719095364 + 54044625625 = 1024558^2 + 232475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103763720989 - 2³⁶ = 1035044244253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103763722989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551881860494 + 551881860495.

It is an arithmetic number, because the mean of its divisors is an integer number (551881860495).

Almost surely, 2^{1103763720989} is an apocalyptic number.

It is an amenable number.

1103763720989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103763720989 is an equidigital number, since it uses as much as digits as its factorization.

1103763720989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The spelling of 1103763720989 in words is "one trillion, one hundred three billion, seven hundred sixty-three million, seven hundred twenty thousand, nine hundred eighty-nine".