20330121203232 has 144 divisors (see below), whose sum is σ = 55794107765088. Its totient is φ = 6481327283200.

The previous prime is 20330121203167. The next prime is 20330121203237. The reversal of 20330121203232 is 23230212103302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20330121203237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599285023 + ... + 599318945.

It is an arithmetic number, because the mean of its divisors is an integer number (387459081702).

Almost surely, 2^{20330121203232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20330121203232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27897053882544).

20330121203232 is an abundant number, since it is smaller than the sum of its proper divisors (35463986561856).

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

20330121203232 is a wasteful number, since it uses less digits than its factorization.

20330121203232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45783 (or 45752 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20330121203232 its reverse (23230212103302), we get a palindrome (43560333306534).

The spelling of 20330121203232 in words is "twenty trillion, three hundred thirty billion, one hundred twenty-one million, two hundred three thousand, two hundred thirty-two".