20031440223244 has 24 divisors (see below), whose sum is σ = 37118145885408. Its totient is φ = 9426289509120.

The previous prime is 20031440223239. The next prime is 20031440223253. The reversal of 20031440223244 is 44232204413002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831864 + ... + 6589279.

It is an arithmetic number, because the mean of its divisors is an integer number (1546589411892).

Almost surely, 2^{20031440223244} is an apocalyptic number.

It is an amenable number.

20031440223244 is a deficient number, since it is larger than the sum of its proper divisors (17086705662164).

20031440223244 is a wasteful number, since it uses less digits than its factorization.

20031440223244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456145 (or 8456143 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20031440223244 its reverse (44232204413002), we get a palindrome (64263644636246).

The spelling of 20031440223244 in words is "twenty trillion, thirty-one billion, four hundred forty million, two hundred twenty-three thousand, two hundred forty-four".