1102121173 has 2 divisors, whose sum is σ = 1102121174. Its totient is φ = 1102121172.

The previous prime is 1102121159. The next prime is 1102121243. The reversal of 1102121173 is 3711212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010095524 + 92025649 = 31782^2 + 9593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102121173 - 2⁹ = 1102120661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102121173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102121873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551060586 + 551060587.

It is an arithmetic number, because the mean of its divisors is an integer number (551060587).

Almost surely, 2^1102121173 is an apocalyptic number.

It is an amenable number.

1102121173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102121173 is an equidigital number, since it uses as much as digits as its factorization.

1102121173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1102121173 is about 33198.2103885134. The cubic root of 1102121173 is about 1032.9432181097.

Adding to 1102121173 its reverse (3711212011), we get a palindrome (4813333184).

The spelling of 1102121173 in words is "one billion, one hundred two million, one hundred twenty-one thousand, one hundred seventy-three".