20124552120 has 128 divisors (see below), whose sum is σ = 63092874240. Its totient is φ = 5130155520.

The previous prime is 20124552101. The next prime is 20124552137. The reversal of 20124552120 is 2125542102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201030 + ... + 284010.

It is an arithmetic number, because the mean of its divisors is an integer number (492913080).

Almost surely, 2^20124552120 is an apocalyptic number.

20124552120 is a gapful number since it is divisible by the number (20) 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 20124552120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31546437120).

20124552120 is an abundant number, since it is smaller than the sum of its proper divisors (42968322120).

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

20124552120 is a wasteful number, since it uses less digits than its factorization.

20124552120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83085 (or 83081 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 20124552120 in words is "twenty billion, one hundred twenty-four million, five hundred fifty-two thousand, one hundred twenty".