20431043101 has 8 divisors (see below), whose sum is σ = 23355771200. Its totient is φ = 17507816928.

The previous prime is 20431043093. The next prime is 20431043131. The reversal of 20431043101 is 10134013402.

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

It is not a de Polignac number, because 20431043101 - 2³ = 20431043093 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 (20431043131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346176 + ... + 400873.

It is an arithmetic number, because the mean of its divisors is an integer number (2919471400).

Almost surely, 2^20431043101 is an apocalyptic number.

It is an amenable number.

20431043101 is a deficient number, since it is larger than the sum of its proper divisors (2924728099).

20431043101 is an equidigital number, since it uses as much as digits as its factorization.

20431043101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750963.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20431043101 its reverse (10134013402), we get a palindrome (30565056503).

The spelling of 20431043101 in words is "twenty billion, four hundred thirty-one million, forty-three thousand, one hundred one".