20131321230301 has 2 divisors, whose sum is σ = 20131321230302. Its totient is φ = 20131321230300.

The previous prime is 20131321230289. The next prime is 20131321230341. The reversal of 20131321230301 is 10303212313102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19312060913401 + 819260316900 = 4394549^2 + 905130^2 .

It is a cyclic number.

It is not a de Polignac number, because 20131321230301 - 2⁵ = 20131321230269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131321230341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065660615150 + 10065660615151.

It is an arithmetic number, because the mean of its divisors is an integer number (10065660615151).

Almost surely, 2^{20131321230301} is an apocalyptic number.

It is an amenable number.

20131321230301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131321230301 is an equidigital number, since it uses as much as digits as its factorization.

20131321230301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20131321230301 its reverse (10303212313102), we get a palindrome (30434533543403).

The spelling of 20131321230301 in words is "twenty trillion, one hundred thirty-one billion, three hundred twenty-one million, two hundred thirty thousand, three hundred one".