20030235030 has 96 divisors (see below), whose sum is σ = 56132032320. Its totient is φ = 4926355200.

The previous prime is 20030235019. The next prime is 20030235037. The reversal of 20030235030 is 3053203002.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20030234994 and 20030235012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030235037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1515591 + ... + 1528749.

It is an arithmetic number, because the mean of its divisors is an integer number (584708670).

Almost surely, 2^20030235030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030235030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28066016160).

20030235030 is an abundant number, since it is smaller than the sum of its proper divisors (36101797290).

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

20030235030 is a wasteful number, since it uses less digits than its factorization.

20030235030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14486 (or 14483 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

Adding to 20030235030 its reverse (3053203002), we get a palindrome (23083438032).

The spelling of 20030235030 in words is "twenty billion, thirty million, two hundred thirty-five thousand, thirty".