20031143324 has 24 divisors (see below), whose sum is σ = 36100115520. Its totient is φ = 9718301376.

The previous prime is 20031143323. The next prime is 20031143347. The reversal of 20031143324 is 42334113002.

It is a self number, because there is not a number n which added to its sum of digits gives 20031143324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031143323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130079 + ... + 238710.

It is an arithmetic number, because the mean of its divisors is an integer number (1504171480).

Almost surely, 2^20031143324 is an apocalyptic number.

It is an amenable number.

20031143324 is a deficient number, since it is larger than the sum of its proper divisors (16068972196).

20031143324 is a wasteful number, since it uses less digits than its factorization.

20031143324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369197 (or 369195 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20031143324 its reverse (42334113002), we get a palindrome (62365256326).

The spelling of 20031143324 in words is "twenty billion, thirty-one million, one hundred forty-three thousand, three hundred twenty-four".