20331220030 has 32 divisors (see below), whose sum is σ = 40210369920. Its totient is φ = 7339977120.

The previous prime is 20331219973. The next prime is 20331220031. The reversal of 20331220030 is 3002213302.

It is a junction number, because it is equal to n+sod(n) for n = 20331219986 and 20331220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331220031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649564 + ... + 680143.

It is an arithmetic number, because the mean of its divisors is an integer number (1256574060).

Almost surely, 2^20331220030 is an apocalyptic number.

20331220030 is a deficient number, since it is larger than the sum of its proper divisors (19879149890).

20331220030 is a wasteful number, since it uses less digits than its factorization.

20331220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329864.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20331220030 its reverse (3002213302), we get a palindrome (23333433332).

The spelling of 20331220030 in words is "twenty billion, three hundred thirty-one million, two hundred twenty thousand, thirty".