20301444030 has 128 divisors (see below), whose sum is σ = 59425062912. Its totient is φ = 4332883968.

The previous prime is 20301443983. The next prime is 20301444139. The reversal of 20301444030 is 3044410302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20301443988 and 20301444006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431002 + ... + 475778.

It is an arithmetic number, because the mean of its divisors is an integer number (464258304).

Almost surely, 2^20301444030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301444030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29712531456).

20301444030 is an abundant number, since it is smaller than the sum of its proper divisors (39123618882).

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

20301444030 is a wasteful number, since it uses less digits than its factorization.

20301444030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20301444030 its reverse (3044410302), we get a palindrome (23345854332).

The spelling of 20301444030 in words is "twenty billion, three hundred one million, four hundred forty-four thousand, thirty".