20031143330 has 32 divisors (see below), whose sum is σ = 39390954048. Its totient is φ = 7273483200.

The previous prime is 20031143323. The next prime is 20031143347. The reversal of 20031143330 is 3334113002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55757 + ... + 207776.

It is an arithmetic number, because the mean of its divisors is an integer number (1230967314).

Almost surely, 2^20031143330 is an apocalyptic number.

20031143330 is a deficient number, since it is larger than the sum of its proper divisors (19359810718).

20031143330 is a wasteful number, since it uses less digits than its factorization.

20031143330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264242.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20031143330 its reverse (3334113002), we get a palindrome (23365256332).

It can be divided in two parts, 20031 and 143330, that added together give a palindrome (163361).

The spelling of 20031143330 in words is "twenty billion, thirty-one million, one hundred forty-three thousand, three hundred thirty".