20440232020143 has 48 divisors (see below), whose sum is σ = 32245717271040. Its totient is φ = 12400682817600.

The previous prime is 20440232020121. The next prime is 20440232020147. The reversal of 20440232020143 is 34102023204402.

20440232020143 is a `hidden beast` number, since 2 + 0 + 440 + 2 + 3 + 202 + 0 + 14 + 3 = 666.

It is not a de Polignac number, because 20440232020143 - 2⁶ = 20440232020079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440232020147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155100588 + ... + 155232318.

It is an arithmetic number, because the mean of its divisors is an integer number (671785776480).

Almost surely, 2^{20440232020143} is an apocalyptic number.

20440232020143 is a deficient number, since it is larger than the sum of its proper divisors (11805485250897).

20440232020143 is a wasteful number, since it uses less digits than its factorization.

20440232020143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150500 (or 150497 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20440232020143 its reverse (34102023204402), we get a palindrome (54542255224545).

The spelling of 20440232020143 in words is "twenty trillion, four hundred forty billion, two hundred thirty-two million, twenty thousand, one hundred forty-three".