21202114013 has 2 divisors, whose sum is σ = 21202114014. Its totient is φ = 21202114012.

The previous prime is 21202113949. The next prime is 21202114019. The reversal of 21202114013 is 31041120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16452423289 + 4749690724 = 128267^2 + 68918^2 .

It is a cyclic number.

It is not a de Polignac number, because 21202114013 - 2⁶ = 21202113949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21202113982 and 21202114000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202114019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601057006 + 10601057007.

It is an arithmetic number, because the mean of its divisors is an integer number (10601057007).

Almost surely, 2^21202114013 is an apocalyptic number.

It is an amenable number.

21202114013 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202114013 is an equidigital number, since it uses as much as digits as its factorization.

21202114013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21202114013 its reverse (31041120212), we get a palindrome (52243234225).

The spelling of 21202114013 in words is "twenty-one billion, two hundred two million, one hundred fourteen thousand, thirteen".