20231331232 has 192 divisors, whose sum is σ = 48185819136. Its totient is φ = 8180904960.

The previous prime is 20231331229. The next prime is 20231331251. The reversal of 20231331232 is 23213313202.

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, 65052357 + ... + 65052667.

It is an arithmetic number, because the mean of its divisors is an integer number (250967808).

Almost surely, 2^20231331232 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 20231331232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24092909568).

20231331232 is an abundant number, since it is smaller than the sum of its proper divisors (27954487904).

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

20231331232 is a wasteful number, since it uses less digits than its factorization.

20231331232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20231331232 its reverse (23213313202), we get a palindrome (43444644434).

The spelling of 20231331232 in words is "twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred thirty-two".