20531304332000 has 384 divisors, whose sum is σ = 62984654853120. Its totient is φ = 6390040320000.

The previous prime is 20531304331933. The next prime is 20531304332027. The reversal of 20531304332000 is 23340313502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212779766 + ... + 212876234.

It is an arithmetic number, because the mean of its divisors is an integer number (164022538680).

Almost surely, 2^{20531304332000} is an apocalyptic number.

20531304332000 is a gapful number since it is divisible by the number (20) 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 20531304332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31492327426560).

20531304332000 is an abundant number, since it is smaller than the sum of its proper divisors (42453350521120).

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

20531304332000 is a wasteful number, since it uses less digits than its factorization.

20531304332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97203 (or 97185 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20531304332000 its reverse (23340313502), we get a palindrome (20554644645502).

The spelling of 20531304332000 in words is "twenty trillion, five hundred thirty-one billion, three hundred four million, three hundred thirty-two thousand".