20331211330 has 16 divisors (see below), whose sum is σ = 38187319104. Its totient is φ = 7778898160.

The previous prime is 20331211321. The next prime is 20331211331. The reversal of 20331211330 is 3311213302.

It is a junction number, because it is equal to n+sod(n) for n = 20331211298 and 20331211307.

It is not an unprimeable number, because it can be changed into a prime (20331211331) 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, 44198056 + ... + 44198515.

It is an arithmetic number, because the mean of its divisors is an integer number (2386707444).

Almost surely, 2^20331211330 is an apocalyptic number.

20331211330 is a deficient number, since it is larger than the sum of its proper divisors (17856107774).

20331211330 is a wasteful number, since it uses less digits than its factorization.

20331211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88396601.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20331211330 its reverse (3311213302), we get a palindrome (23642424632).

The spelling of 20331211330 in words is "twenty billion, three hundred thirty-one million, two hundred eleven thousand, three hundred thirty".