1101132405 has 12 divisors (see below), whose sum is σ = 1908629580. Its totient is φ = 587270592.

The previous prime is 1101132379. The next prime is 1101132413. The reversal of 1101132405 is 5042311011.

It can be written as a sum of positive squares in 2 ways, for example, as 258855921 + 842276484 = 16089^2 + 29022^2 .

It is not a de Polignac number, because 1101132405 - 2⁹ = 1101131893 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12234760 + ... + 12234849.

It is an arithmetic number, because the mean of its divisors is an integer number (159052465).

Almost surely, 2^1101132405 is an apocalyptic number.

1101132405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101132405 is a deficient number, since it is larger than the sum of its proper divisors (807497175).

1101132405 is a wasteful number, since it uses less digits than its factorization.

1101132405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24469620 (or 24469617 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1101132405 is about 33183.3151598812. The cubic root of 1101132405 is about 1032.6342240205.

Adding to 1101132405 its reverse (5042311011), we get a palindrome (6143443416).

The spelling of 1101132405 in words is "one billion, one hundred one million, one hundred thirty-two thousand, four hundred five".