20030436512 has 48 divisors (see below), whose sum is σ = 42153193152. Its totient is φ = 9346106880.

The previous prime is 20030436497. The next prime is 20030436521. The reversal of 20030436512 is 21563403002.

It is a super-2 number, since 2×20030436512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301718 + ... + 362069.

It is an arithmetic number, because the mean of its divisors is an integer number (878191524).

Almost surely, 2^20030436512 is an apocalyptic number.

It is an amenable number.

20030436512 is an abundant number, since it is smaller than the sum of its proper divisors (22122756640).

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

20030436512 is a wasteful number, since it uses less digits than its factorization.

20030436512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663861 (or 663853 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20030436512 its reverse (21563403002), we get a palindrome (41593839514).

The spelling of 20030436512 in words is "twenty billion, thirty million, four hundred thirty-six thousand, five hundred twelve".