20043232193 has 4 divisors (see below), whose sum is σ = 20055598548. Its totient is φ = 20030865840.

The previous prime is 20043232159. The next prime is 20043232199. The reversal of 20043232193 is 39123234002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10605498289 + 9437733904 = 102983^2 + 97148^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043232193 - 2¹⁶ = 20043166657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043232199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6180746 + ... + 6183987.

It is an arithmetic number, because the mean of its divisors is an integer number (5013899637).

Almost surely, 2^20043232193 is an apocalyptic number.

It is an amenable number.

20043232193 is a deficient number, since it is larger than the sum of its proper divisors (12366355).

20043232193 is a wasteful number, since it uses less digits than its factorization.

20043232193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366354.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 20043232193 its reverse (39123234002), we get a palindrome (59166466195).

The spelling of 20043232193 in words is "twenty billion, forty-three million, two hundred thirty-two thousand, one hundred ninety-three".