20432243111 has 8 divisors (see below), whose sum is σ = 23374058880. Its totient is φ = 17496158328.

The previous prime is 20432243099. The next prime is 20432243159. The reversal of 20432243111 is 11134223402.

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

It is a cyclic number.

It is not a de Polignac number, because 20432243111 - 2¹⁸ = 20431980967 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 (20432243171) 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, 1425101 + ... + 1439366.

It is an arithmetic number, because the mean of its divisors is an integer number (2921757360).

Almost surely, 2^20432243111 is an apocalyptic number.

20432243111 is a deficient number, since it is larger than the sum of its proper divisors (2941815769).

20432243111 is a wasteful number, since it uses less digits than its factorization.

20432243111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865493.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20432243111 its reverse (11134223402), we get a palindrome (31566466513).

The spelling of 20432243111 in words is "twenty billion, four hundred thirty-two million, two hundred forty-three thousand, one hundred eleven".