20030023332 has 96 divisors (see below), whose sum is σ = 56783462400. Its totient is φ = 6055466400.

The previous prime is 20030023319. The next prime is 20030023361. The reversal of 20030023332 is 23332003002.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492469 + ... + 531587.

It is an arithmetic number, because the mean of its divisors is an integer number (591494400).

Almost surely, 2^20030023332 is an apocalyptic number.

20030023332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030023332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28391731200).

20030023332 is an abundant number, since it is smaller than the sum of its proper divisors (36753439068).

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

20030023332 is a wasteful number, since it uses less digits than its factorization.

20030023332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39574 (or 39566 counting only the distinct ones).

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

Adding to 20030023332 its reverse (23332003002), we get a palindrome (43362026334).

The spelling of 20030023332 in words is "twenty billion, thirty million, twenty-three thousand, three hundred thirty-two".