2101321152 has 84 divisors (see below), whose sum is σ = 6883507696. Its totient is φ = 600376320.

The previous prime is 2101321151. The next prime is 2101321181. The reversal of 2101321152 is 2511231012.

It is a tau number, because it is divible by the number of its divisors (84).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101321151) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 256549 + ... + 264612.

Almost surely, 2^2101321152 is an apocalyptic number.

It is an amenable number.

2101321152 is an abundant number, since it is smaller than the sum of its proper divisors (4782186544).

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

2101321152 is a wasteful number, since it uses less digits than its factorization.

2101321152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521186 (or 521173 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2101321152 is about 45840.1696331940. The cubic root of 2101321152 is about 1280.8476546794.

Adding to 2101321152 its reverse (2511231012), we get a palindrome (4612552164).

The spelling of 2101321152 in words is "two billion, one hundred one million, three hundred twenty-one thousand, one hundred fifty-two".