20032320330 has 64 divisors (see below), whose sum is σ = 58275849600. Its totient is φ = 4856319360.

The previous prime is 20032320299. The next prime is 20032320337. The reversal of 20032320330 is 3302323002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20032320337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3369475 + ... + 3375414.

It is an arithmetic number, because the mean of its divisors is an integer number (910560150).

Almost surely, 2^20032320330 is an apocalyptic number.

20032320330 is an abundant number, since it is smaller than the sum of its proper divisors (38243529270).

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

20032320330 is a wasteful number, since it uses less digits than its factorization.

20032320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744916 (or 6744910 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 20032320330 its reverse (3302323002), we get a palindrome (23334643332).

The spelling of 20032320330 in words is "twenty billion, thirty-two million, three hundred twenty thousand, three hundred thirty".