1090209011 has 8 divisors (see below), whose sum is σ = 1099122000. Its totient is φ = 1081317600.

The previous prime is 1090209007. The next prime is 1090209013. The reversal of 1090209011 is 1109020901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1090209011 - 2² = 1090209007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090209013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105161 + ... + 115061.

It is an arithmetic number, because the mean of its divisors is an integer number (137390250).

Almost surely, 2^1090209011 is an apocalyptic number.

1090209011 is a deficient number, since it is larger than the sum of its proper divisors (8912989).

1090209011 is an equidigital number, since it uses as much as digits as its factorization.

1090209011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10789.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1090209011 is about 33018.3132670341. The cubic root of 1090209011 is about 1029.2082428249.

Adding to 1090209011 its reverse (1109020901), we get a palindrome (2199229912).

The spelling of 1090209011 in words is "one billion, ninety million, two hundred nine thousand, eleven".