21030202022311 has 2 divisors, whose sum is σ = 21030202022312. Its totient is φ = 21030202022310.

The previous prime is 21030202022287. The next prime is 21030202022321. The reversal of 21030202022311 is 11322020203012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21030202022311 - 2¹⁹ = 21030201498023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21030202022321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515101011155 + 10515101011156.

It is an arithmetic number, because the mean of its divisors is an integer number (10515101011156).

Almost surely, 2^{21030202022311} is an apocalyptic number.

21030202022311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030202022311 is an equidigital number, since it uses as much as digits as its factorization.

21030202022311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21030202022311 its reverse (11322020203012), we get a palindrome (32352222225323).

The spelling of 21030202022311 in words is "twenty-one trillion, thirty billion, two hundred two million, twenty-two thousand, three hundred eleven".