2021235343111 has 2 divisors, whose sum is σ = 2021235343112. Its totient is φ = 2021235343110.

The previous prime is 2021235343109. The next prime is 2021235343129. The reversal of 2021235343111 is 1113435321202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021235343111 - 2¹ = 2021235343109 is a prime.

Together with 2021235343109, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2021235343111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021235343151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010617671555 + 1010617671556.

It is an arithmetic number, because the mean of its divisors is an integer number (1010617671556).

Almost surely, 2^{2021235343111} is an apocalyptic number.

2021235343111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021235343111 is an equidigital number, since it uses as much as digits as its factorization.

2021235343111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 2021235343111 in words is "two trillion, twenty-one billion, two hundred thirty-five million, three hundred forty-three thousand, one hundred eleven".