21002202132311 has 2 divisors, whose sum is σ = 21002202132312. Its totient is φ = 21002202132310.

The previous prime is 21002202132259. The next prime is 21002202132319. The reversal of 21002202132311 is 11323120220012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21002202132311 - 2²⁶ = 21002135023447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21002202132319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501101066155 + 10501101066156.

It is an arithmetic number, because the mean of its divisors is an integer number (10501101066156).

Almost surely, 2^{21002202132311} is an apocalyptic number.

21002202132311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002202132311 is an equidigital number, since it uses as much as digits as its factorization.

21002202132311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21002202132311 its reverse (11323120220012), we get a palindrome (32325322352323).

The spelling of 21002202132311 in words is "twenty-one trillion, two billion, two hundred two million, one hundred thirty-two thousand, three hundred eleven".