20431042103 has 8 divisors (see below), whose sum is σ = 20507827200. Its totient is φ = 20354391288.

The previous prime is 20431042087. The next prime is 20431042111. The reversal of 20431042103 is 30124013402.

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 20431042103 - 2⁴ = 20431042087 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 (20431042123) 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, 276650 + ... + 342632.

It is an arithmetic number, because the mean of its divisors is an integer number (2563478400).

Almost surely, 2^20431042103 is an apocalyptic number.

20431042103 is a deficient number, since it is larger than the sum of its proper divisors (76785097).

20431042103 is an equidigital number, since it uses as much as digits as its factorization.

20431042103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67141.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20431042103 its reverse (30124013402), we get a palindrome (50555055505).

The spelling of 20431042103 in words is "twenty billion, four hundred thirty-one million, forty-two thousand, one hundred three".