20210020330 has 16 divisors (see below), whose sum is σ = 36379682784. Its totient is φ = 8083642320.

The previous prime is 20210020321. The next prime is 20210020333. The reversal of 20210020330 is 3302001202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20210020330.

It is not an unprimeable number, because it can be changed into a prime (20210020333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346585 + ... + 400675.

It is an arithmetic number, because the mean of its divisors is an integer number (2273730174).

Almost surely, 2^20210020330 is an apocalyptic number.

20210020330 is a deficient number, since it is larger than the sum of its proper divisors (16169662454).

20210020330 is a wasteful number, since it uses less digits than its factorization.

20210020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91461.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20210020330 its reverse (3302001202), we get a palindrome (23512021532).

The spelling of 20210020330 in words is "twenty billion, two hundred ten million, twenty thousand, three hundred thirty".