20101152 has 48 divisors (see below), whose sum is σ = 54063072. Its totient is φ = 6535680.

The previous prime is 20101141. The next prime is 20101187. The reversal of 20101152 is 25110102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (1126314).

Almost surely, 2^20101152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20101152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27031536).

20101152 is an abundant number, since it is smaller than the sum of its proper divisors (33961920).

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

20101152 is a wasteful number, since it uses less digits than its factorization.

20101152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 20101152 is about 4483.4308291754. The cubic root of 20101152 is about 271.8986069606.

Adding to 20101152 its reverse (25110102), we get a palindrome (45211254).

The spelling of 20101152 in words is "twenty million, one hundred one thousand, one hundred fifty-two".