1103210989 has 2 divisors, whose sum is σ = 1103210990. Its totient is φ = 1103210988.

The previous prime is 1103210957. The next prime is 1103211001. The reversal of 1103210989 is 9890123011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982320964 + 120890025 = 31342^2 + 10995^2 .

It is an emirp because it is prime and its reverse (9890123011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1103210989 - 2⁵ = 1103210957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103210929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551605494 + 551605495.

It is an arithmetic number, because the mean of its divisors is an integer number (551605495).

Almost surely, 2^1103210989 is an apocalyptic number.

It is an amenable number.

1103210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103210989 is an equidigital number, since it uses as much as digits as its factorization.

1103210989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1103210989 is about 33214.6201092230. The cubic root of 1103210989 is about 1033.2835760872.

The spelling of 1103210989 in words is "one billion, one hundred three million, two hundred ten thousand, nine hundred eighty-nine".