20113121333413 has 2 divisors, whose sum is σ = 20113121333414. Its totient is φ = 20113121333412.

The previous prime is 20113121333303. The next prime is 20113121333419. The reversal of 20113121333413 is 31433312131102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19745420990724 + 367700342689 = 4443582^2 + 606383^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113121333413 - 2²¹ = 20113119236261 is a prime.

It is a super-2 number, since 2×20113121333413² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113121333419) 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, 10056560666706 + 10056560666707.

It is an arithmetic number, because the mean of its divisors is an integer number (10056560666707).

Almost surely, 2^{20113121333413} is an apocalyptic number.

It is an amenable number.

20113121333413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113121333413 is an equidigital number, since it uses as much as digits as its factorization.

20113121333413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20113121333413 its reverse (31433312131102), we get a palindrome (51546433464515).

The spelling of 20113121333413 in words is "twenty trillion, one hundred thirteen billion, one hundred twenty-one million, three hundred thirty-three thousand, four hundred thirteen".