20331022330 has 128 divisors (see below), whose sum is σ = 41453420544. Its totient is φ = 7141478400.

The previous prime is 20331022307. The next prime is 20331022331. The reversal of 20331022330 is 3322013302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20331022298 and 20331022307.

It is not an unprimeable number, because it can be changed into a prime (20331022331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24763320 + ... + 24764140.

It is an arithmetic number, because the mean of its divisors is an integer number (323854848).

Almost surely, 2^20331022330 is an apocalyptic number.

20331022330 is an abundant number, since it is smaller than the sum of its proper divisors (21122398214).

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

20331022330 is a wasteful number, since it uses less digits than its factorization.

20331022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20331022330 its reverse (3322013302), we get a palindrome (23653035632).

The spelling of 20331022330 in words is "twenty billion, three hundred thirty-one million, twenty-two thousand, three hundred thirty".