1101445512 has 32 divisors (see below), whose sum is σ = 2800288800. Its totient is φ = 360925184.

The previous prime is 1101445493. The next prime is 1101445529. The reversal of 1101445512 is 2155441011.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 387513 + ... + 390344.

It is an arithmetic number, because the mean of its divisors is an integer number (87509025).

Almost surely, 2^1101445512 is an apocalyptic number.

1101445512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101445512 is an abundant number, since it is smaller than the sum of its proper divisors (1698843288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101445512 is a wasteful number, since it uses less digits than its factorization.

1101445512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777925 (or 777921 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1101445512 is about 33188.0326623920. The cubic root of 1101445512 is about 1032.7320912589.

Adding to 1101445512 its reverse (2155441011), we get a palindrome (3256886523).

The spelling of 1101445512 in words is "one billion, one hundred one million, four hundred forty-five thousand, five hundred twelve".