20033430000 has 100 divisors (see below), whose sum is σ = 64670680008. Its totient is φ = 5342240000.

The previous prime is 20033429993. The next prime is 20033430017. The reversal of 20033430000 is 3433002.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 303891 + ... + 363890.

Almost surely, 2^20033430000 is an apocalyptic number.

20033430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20033430000 is an abundant number, since it is smaller than the sum of its proper divisors (44637250008).

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

20033430000 is an equidigital number, since it uses as much as digits as its factorization.

20033430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667812 (or 667791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 20033430000 its reverse (3433002), we get a palindrome (20036863002).

The spelling of 20033430000 in words is "twenty billion, thirty-three million, four hundred thirty thousand".