20747301120 has 864 divisors, whose sum is σ = 91746100992. Its totient is φ = 4371480576.

The previous prime is 20747301103. The next prime is 20747301121. The reversal of 20747301120 is 2110374702.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20747301121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28304274 + ... + 28305006.

Almost surely, 2^20747301120 is an apocalyptic number.

20747301120 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 20747301120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45873050496).

20747301120 is an abundant number, since it is smaller than the sum of its proper divisors (70998799872).

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

20747301120 is an equidigital number, since it uses as much as digits as its factorization.

20747301120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 20747301120 its reverse (2110374702), we get a palindrome (22857675822).

The spelling of 20747301120 in words is "twenty billion, seven hundred forty-seven million, three hundred one thousand, one hundred twenty".