20131113241 has 2 divisors, whose sum is σ = 20131113242. Its totient is φ = 20131113240.

The previous prime is 20131113229. The next prime is 20131113271. The reversal of 20131113241 is 14231113102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13159531225 + 6971582016 = 114715^2 + 83496^2 .

It is a cyclic number.

It is not a de Polignac number, because 20131113241 - 2⁵ = 20131113209 is a prime.

It is not a weakly prime, because it can be changed into another prime (20131113271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065556620 + 10065556621.

It is an arithmetic number, because the mean of its divisors is an integer number (10065556621).

Almost surely, 2^20131113241 is an apocalyptic number.

It is an amenable number.

20131113241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131113241 is an equidigital number, since it uses as much as digits as its factorization.

20131113241 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 20131113241 its reverse (14231113102), we get a palindrome (34362226343).

The spelling of 20131113241 in words is "twenty billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred forty-one".