20130403441 has 2 divisors, whose sum is σ = 20130403442. Its totient is φ = 20130403440.

The previous prime is 20130403417. The next prime is 20130403451. The reversal of 20130403441 is 14430403102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10265742400 + 9864661041 = 101320^2 + 99321^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130403441 - 2¹⁷ = 20130272369 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130403451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065201720 + 10065201721.

It is an arithmetic number, because the mean of its divisors is an integer number (10065201721).

Almost surely, 2^20130403441 is an apocalyptic number.

It is an amenable number.

20130403441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130403441 is an equidigital number, since it uses as much as digits as its factorization.

20130403441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20130403441 its reverse (14430403102), we get a palindrome (34560806543).

The spelling of 20130403441 in words is "twenty billion, one hundred thirty million, four hundred three thousand, four hundred forty-one".