20232143444 has 6 divisors (see below), whose sum is σ = 35406251034. Its totient is φ = 10116071720.

The previous prime is 20232143417. The next prime is 20232143461. The reversal of 20232143444 is 44434123202.

It can be written as a sum of positive squares in only one way, i.e., 20146395844 + 85747600 = 141938^2 + 9260^2 .

It is a super-2 number, since 2×20232143444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2529017927 + ... + 2529017934.

It is an arithmetic number, because the mean of its divisors is an integer number (5901041839).

Almost surely, 2^20232143444 is an apocalyptic number.

It is an amenable number.

20232143444 is a deficient number, since it is larger than the sum of its proper divisors (15174107590).

20232143444 is a wasteful number, since it uses less digits than its factorization.

20232143444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058035865 (or 5058035863 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20232143444 its reverse (44434123202), we get a palindrome (64666266646).

The spelling of 20232143444 in words is "twenty billion, two hundred thirty-two million, one hundred forty-three thousand, four hundred forty-four".