1331101205 has 8 divisors (see below), whose sum is σ = 1825510272. Its totient is φ = 912755088.

The previous prime is 1331101181. The next prime is 1331101217. The reversal of 1331101205 is 5021011331.

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

It is not a de Polignac number, because 1331101205 - 2¹⁰ = 1331100181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19015697 + ... + 19015766.

It is an arithmetic number, because the mean of its divisors is an integer number (228188784).

Almost surely, 2^1331101205 is an apocalyptic number.

It is an amenable number.

1331101205 is a deficient number, since it is larger than the sum of its proper divisors (494409067).

1331101205 is an equidigital number, since it uses as much as digits as its factorization.

1331101205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38031475.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1331101205 is about 36484.2596882546. The cubic root of 1331101205 is about 1100.0278794587.

Adding to 1331101205 its reverse (5021011331), we get a palindrome (6352112536).

The spelling of 1331101205 in words is "one billion, three hundred thirty-one million, one hundred one thousand, two hundred five".