20431004303 has 2 divisors, whose sum is σ = 20431004304. Its totient is φ = 20431004302.

The previous prime is 20431004299. The next prime is 20431004309. The reversal of 20431004303 is 30340013402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20431004303 - 2² = 20431004299 is a prime.

It is a super-3 number, since 3×20431004303³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20431004309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215502151 + 10215502152.

It is an arithmetic number, because the mean of its divisors is an integer number (10215502152).

Almost surely, 2^20431004303 is an apocalyptic number.

20431004303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20431004303 is an equidigital number, since it uses as much as digits as its factorization.

20431004303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20431004303 its reverse (30340013402), we get a palindrome (50771017705).

Subtracting 20431004303 from its reverse (30340013402), we obtain a palindrome (9909009099).

The spelling of 20431004303 in words is "twenty billion, four hundred thirty-one million, four thousand, three hundred three".