1101090901 has 8 divisors (see below), whose sum is σ = 1181832984. Its totient is φ = 1022123520.

The previous prime is 1101090857. The next prime is 1101090911. The reversal of 1101090901 is 1090901011.

It can be written as a sum of positive squares in 4 ways, for example, as 67404100 + 1033686801 = 8210^2 + 32151^2 .

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 1101090901 - 2¹¹ = 1101088853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101090911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442390 + ... + 444871.

It is an arithmetic number, because the mean of its divisors is an integer number (147729123).

Almost surely, 2^1101090901 is an apocalyptic number.

It is an amenable number.

1101090901 is a deficient number, since it is larger than the sum of its proper divisors (80742083).

1101090901 is an equidigital number, since it uses as much as digits as its factorization.

1101090901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887351.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 1101090901 is about 33182.6897794618. The cubic root of 1101090901 is about 1032.6212498044.

Adding to 1101090901 its reverse (1090901011), we get a palindrome (2191991912).

The spelling of 1101090901 in words is "one billion, one hundred one million, ninety thousand, nine hundred one".