21313120001113 has 2 divisors, whose sum is σ = 21313120001114. Its totient is φ = 21313120001112.

The previous prime is 21313120001101. The next prime is 21313120001161. The reversal of 21313120001113 is 31110002131312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19044818937369 + 2268301063744 = 4364037^2 + 1506088^2 .

It is a cyclic number.

It is not a de Polignac number, because 21313120001113 - 2⁵ = 21313120001081 is a prime.

It is not a weakly prime, because it can be changed into another prime (21313120001213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656560000556 + 10656560000557.

It is an arithmetic number, because the mean of its divisors is an integer number (10656560000557).

Almost surely, 2^{21313120001113} is an apocalyptic number.

It is an amenable number.

21313120001113 is a deficient number, since it is larger than the sum of its proper divisors (1).

21313120001113 is an equidigital number, since it uses as much as digits as its factorization.

21313120001113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21313120001113 its reverse (31110002131312), we get a palindrome (52423122132425).

The spelling of 21313120001113 in words is "twenty-one trillion, three hundred thirteen billion, one hundred twenty million, one thousand, one hundred thirteen".