211300011023 has 4 divisors (see below), whose sum is σ = 220486968048. Its totient is φ = 202113054000.

The previous prime is 211300011019. The next prime is 211300011061. The reversal of 211300011023 is 320110003112.

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 211300011023 - 2² = 211300011019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211300010989 and 211300011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300011073) 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, 4593478478 + ... + 4593478523.

It is an arithmetic number, because the mean of its divisors is an integer number (55121742012).

Almost surely, 2^211300011023 is an apocalyptic number.

211300011023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211300011023 is a deficient number, since it is larger than the sum of its proper divisors (9186957025).

211300011023 is an equidigital number, since it uses as much as digits as its factorization.

211300011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186957024.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211300011023 its reverse (320110003112), we get a palindrome (531410014135).

The spelling of 211300011023 in words is "two hundred eleven billion, three hundred million, eleven thousand, twenty-three".