211301301023 has 4 divisors (see below), whose sum is σ = 211356866568. Its totient is φ = 211245735480.

The previous prime is 211301301019. The next prime is 211301301059. The reversal of 211301301023 is 320103103112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211301301023 - 2² = 211301301019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211301300992 and 211301301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211301301623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27777068 + ... + 27784673.

It is an arithmetic number, because the mean of its divisors is an integer number (52839216642).

Almost surely, 2^211301301023 is an apocalyptic number.

211301301023 is a deficient number, since it is larger than the sum of its proper divisors (55565545).

211301301023 is an equidigital number, since it uses as much as digits as its factorization.

211301301023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55565544.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 211301301023 its reverse (320103103112), we get a palindrome (531404404135).

The spelling of 211301301023 in words is "two hundred eleven billion, three hundred one million, three hundred one thousand, twenty-three".