20013061403941 has 2 divisors, whose sum is σ = 20013061403942. Its totient is φ = 20013061403940.

The previous prime is 20013061403939. The next prime is 20013061404067. The reversal of 20013061403941 is 14930416031002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11033126208225 + 8979935195716 = 3321615^2 + 2996654^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013061403941 - 2¹ = 20013061403939 is a prime.

Together with 20013061403939, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20013061403897 and 20013061403906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013061401941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006530701970 + 10006530701971.

It is an arithmetic number, because the mean of its divisors is an integer number (10006530701971).

Almost surely, 2^{20013061403941} is an apocalyptic number.

It is an amenable number.

20013061403941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013061403941 is an equidigital number, since it uses as much as digits as its factorization.

20013061403941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

Adding to 20013061403941 its reverse (14930416031002), we get a palindrome (34943477434943).

The spelling of 20013061403941 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred three thousand, nine hundred forty-one".