20043232511 has 8 divisors (see below), whose sum is σ = 20385783600. Its totient is φ = 19703455488.

The previous prime is 20043232499. The next prime is 20043232537. The reversal of 20043232511 is 11523234002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043232511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043232591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678941 + ... + 707846.

It is an arithmetic number, because the mean of its divisors is an integer number (2548222950).

Almost surely, 2^20043232511 is an apocalyptic number.

20043232511 is a deficient number, since it is larger than the sum of its proper divisors (342551089).

20043232511 is a wasteful number, since it uses less digits than its factorization.

20043232511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387033.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20043232511 its reverse (11523234002), we get a palindrome (31566466513).

The spelling of 20043232511 in words is "twenty billion, forty-three million, two hundred thirty-two thousand, five hundred eleven".