1101330145 has 4 divisors (see below), whose sum is σ = 1321596180. Its totient is φ = 881064112.

The previous prime is 1101330133. The next prime is 1101330163. The reversal of 1101330145 is 5410331011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5410331011 = 61 ⋅88693951.

It can be written as a sum of positive squares in 2 ways, for example, as 567535329 + 533794816 = 23823^2 + 23104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101330145 - 2⁷ = 1101330017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110133010 + ... + 110133019.

It is an arithmetic number, because the mean of its divisors is an integer number (330399045).

Almost surely, 2^1101330145 is an apocalyptic number.

It is an amenable number.

1101330145 is a deficient number, since it is larger than the sum of its proper divisors (220266035).

1101330145 is an equidigital number, since it uses as much as digits as its factorization.

1101330145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220266034.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1101330145 is about 33186.2945355458. The cubic root of 1101330145 is about 1032.6960333811.

Adding to 1101330145 its reverse (5410331011), we get a palindrome (6511661156).

The spelling of 1101330145 in words is "one billion, one hundred one million, three hundred thirty thousand, one hundred forty-five".