20211452311 has 2 divisors, whose sum is σ = 20211452312. Its totient is φ = 20211452310.

The previous prime is 20211452297. The next prime is 20211452333. The reversal of 20211452311 is 11325411202.

It is an a-pointer prime, because the next prime (20211452333) can be obtained adding 20211452311 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211452311 - 2²⁵ = 20177897879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214452311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105726155 + 10105726156.

It is an arithmetic number, because the mean of its divisors is an integer number (10105726156).

Almost surely, 2^20211452311 is an apocalyptic number.

20211452311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211452311 is an equidigital number, since it uses as much as digits as its factorization.

20211452311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 20211452311 its reverse (11325411202), we get a palindrome (31536863513).

The spelling of 20211452311 in words is "twenty billion, two hundred eleven million, four hundred fifty-two thousand, three hundred eleven".