20331120232 has 32 divisors (see below), whose sum is σ = 39349993320. Its totient is φ = 9840579840.

The previous prime is 20331120223. The next prime is 20331120239. The reversal of 20331120232 is 23202113302.

It can be written as a sum of positive squares in 4 ways, for example, as 20330767396 + 352836 = 142586^2 + 594^2 .

It is not an unprimeable number, because it can be changed into a prime (20331120239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 116019 + ... + 232642.

Almost surely, 2^20331120232 is an apocalyptic number.

It is an amenable number.

20331120232 is a deficient number, since it is larger than the sum of its proper divisors (19018873088).

20331120232 is a wasteful number, since it uses less digits than its factorization.

20331120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348901 (or 348897 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20331120232 its reverse (23202113302), we get a palindrome (43533233534).

The spelling of 20331120232 in words is "twenty billion, three hundred thirty-one million, one hundred twenty thousand, two hundred thirty-two".