20432743211 has 4 divisors (see below), whose sum is σ = 20984979552. Its totient is φ = 19880506872.

The previous prime is 20432743159. The next prime is 20432743213. The reversal of 20432743211 is 11234723402.

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

It is a cyclic number.

It is not a de Polignac number, because 20432743211 - 2⁶ = 20432743147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20432743213) 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, 276118115 + ... + 276118188.

It is an arithmetic number, because the mean of its divisors is an integer number (5246244888).

Almost surely, 2^20432743211 is an apocalyptic number.

20432743211 is a deficient number, since it is larger than the sum of its proper divisors (552236341).

20432743211 is an equidigital number, since it uses as much as digits as its factorization.

20432743211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552236340.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 20432743211 in words is "twenty billion, four hundred thirty-two million, seven hundred forty-three thousand, two hundred eleven".