1101205152 has 96 divisors (see below), whose sum is σ = 3229148160. Its totient is φ = 365091840.

The previous prime is 1101205111. The next prime is 1101205163. The reversal of 1101205152 is 2515021011.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161688 + ... + 168360.

It is an arithmetic number, because the mean of its divisors is an integer number (33636960).

Almost surely, 2^1101205152 is an apocalyptic number.

1101205152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101205152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614574080).

1101205152 is an abundant number, since it is smaller than the sum of its proper divisors (2127943008).

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

1101205152 is a wasteful number, since it uses less digits than its factorization.

1101205152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883 (or 6869 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1101205152 is about 33184.4112799971. The cubic root of 1101205152 is about 1032.6569640613.

Adding to 1101205152 its reverse (2515021011), we get a palindrome (3616226163).

The spelling of 1101205152 in words is "one billion, one hundred one million, two hundred five thousand, one hundred fifty-two".