20031200144432 has 40 divisors (see below), whose sum is σ = 39718340448336. Its totient is φ = 9781368258816.

The previous prime is 20031200144413. The next prime is 20031200144437. The reversal of 20031200144432 is 23444100213002.

It is not an unprimeable number, because it can be changed into a prime (20031200144437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197198 + ... + 7091154.

Almost surely, 2^{20031200144432} is an apocalyptic number.

It is an amenable number.

20031200144432 is a deficient number, since it is larger than the sum of its proper divisors (19687140303904).

20031200144432 is a wasteful number, since it uses less digits than its factorization.

20031200144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901485 (or 3901479 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20031200144432 its reverse (23444100213002), we get a palindrome (43475300357434).

The spelling of 20031200144432 in words is "twenty trillion, thirty-one billion, two hundred million, one hundred forty-four thousand, four hundred thirty-two".