1101131509 has 8 divisors (see below), whose sum is σ = 1149648192. Its totient is φ = 1052668320.

The previous prime is 1101131413. The next prime is 1101131513. The reversal of 1101131509 is 9051311011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101131509 is a prime.

It is a super-2 number, since 2×1101131509² = 2424981200225234162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101131509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101131569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32017 + ... + 56809.

It is an arithmetic number, because the mean of its divisors is an integer number (143706024).

Almost surely, 2^1101131509 is an apocalyptic number.

It is an amenable number.

1101131509 is a deficient number, since it is larger than the sum of its proper divisors (48516683).

1101131509 is a wasteful number, since it uses less digits than its factorization.

1101131509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26747.

The product of its (nonzero) digits is 135, while the sum is 22.

The square root of 1101131509 is about 33183.3016591176. The cubic root of 1101131509 is about 1032.6339439329.

The spelling of 1101131509 in words is "one billion, one hundred one million, one hundred thirty-one thousand, five hundred nine".