20001020430 has 32 divisors (see below), whose sum is σ = 49118788224. Its totient is φ = 5209567776.

The previous prime is 20001020401. The next prime is 20001020437. The reversal of 20001020430 is 3402010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001020437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7751044 + ... + 7753623.

It is an arithmetic number, because the mean of its divisors is an integer number (1534962132).

Almost surely, 2^20001020430 is an apocalyptic number.

20001020430 is an abundant number, since it is smaller than the sum of its proper divisors (29117767794).

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

20001020430 is a wasteful number, since it uses less digits than its factorization.

20001020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15504720.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20001020430 its reverse (3402010002), we get a palindrome (23403030432).

The spelling of 20001020430 in words is "twenty billion, one million, twenty thousand, four hundred thirty".