20221002311 has 2 divisors, whose sum is σ = 20221002312. Its totient is φ = 20221002310.

The previous prime is 20221002287. The next prime is 20221002313. The reversal of 20221002311 is 11320012202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20221002311 - 2³⁴ = 3041133127 is a prime.

It is a super-2 number, since 2×20221002311² (a number of 21 digits) contains 22 as substring.

Together with 20221002313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221002313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110501155 + 10110501156.

It is an arithmetic number, because the mean of its divisors is an integer number (10110501156).

Almost surely, 2^20221002311 is an apocalyptic number.

20221002311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221002311 is an equidigital number, since it uses as much as digits as its factorization.

20221002311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20221002311 its reverse (11320012202), we get a palindrome (31541014513).

The spelling of 20221002311 in words is "twenty billion, two hundred twenty-one million, two thousand, three hundred eleven".