20313111241 has 2 divisors, whose sum is σ = 20313111242. Its totient is φ = 20313111240.

The previous prime is 20313111229. The next prime is 20313111251. The reversal of 20313111241 is 14211131302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18488112841 + 1824998400 = 135971^2 + 42720^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313111241 - 2⁵ = 20313111209 is a prime.

It is not a weakly prime, because it can be changed into another prime (20313111211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156555620 + 10156555621.

It is an arithmetic number, because the mean of its divisors is an integer number (10156555621).

Almost surely, 2^20313111241 is an apocalyptic number.

It is an amenable number.

20313111241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313111241 is an equidigital number, since it uses as much as digits as its factorization.

20313111241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20313111241 its reverse (14211131302), we get a palindrome (34524242543).

The spelling of 20313111241 in words is "twenty billion, three hundred thirteen million, one hundred eleven thousand, two hundred forty-one".