20423045223244 has 12 divisors (see below), whose sum is σ = 35919928786000. Its totient is φ = 10160208427248.

The previous prime is 20423045223227. The next prime is 20423045223253. The reversal of 20423045223244 is 44232254032402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12828545199 + ... + 12828546790.

Almost surely, 2^{20423045223244} is an apocalyptic number.

It is an amenable number.

20423045223244 is a deficient number, since it is larger than the sum of its proper divisors (15496883562756).

20423045223244 is a wasteful number, since it uses less digits than its factorization.

20423045223244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25657092192 (or 25657092190 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 37.

Adding to 20423045223244 its reverse (44232254032402), we get a palindrome (64655299255646).

The spelling of 20423045223244 in words is "twenty trillion, four hundred twenty-three billion, forty-five million, two hundred twenty-three thousand, two hundred forty-four".