1081328211 has 20 divisors (see below), whose sum is σ = 1621310944. Its totient is φ = 718210800.

The previous prime is 1081328203. The next prime is 1081328257. The reversal of 1081328211 is 1128231801.

It is not a de Polignac number, because 1081328211 - 2³ = 1081328203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081329211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2680 + ... + 46581.

Almost surely, 2^1081328211 is an apocalyptic number.

1081328211 is a deficient number, since it is larger than the sum of its proper divisors (539982733).

1081328211 is an equidigital number, since it uses as much as digits as its factorization.

1081328211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49544 (or 49535 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 1081328211 is about 32883.5553278535. Note that the first 3 decimals coincide. The cubic root of 1081328211 is about 1026.4059899383.

The spelling of 1081328211 in words is "one billion, eighty-one million, three hundred twenty-eight thousand, two hundred eleven".