211113202302123 has 32 divisors (see below), whose sum is σ = 321565083397632. Its totient is φ = 121948933075200.

The previous prime is 211113202302019. The next prime is 211113202302133. The reversal of 211113202302123 is 321203202311112.

It is not a de Polignac number, because 211113202302123 - 2⁸ = 211113202301867 is a prime.

It is a super-2 number, since 2×211113202302123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211113202302093 and 211113202302102.

It is not an unprimeable number, because it can be changed into a prime (211113202302133) 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 in 31 ways as a sum of consecutive naturals, for example, 494709340 + ... + 495135897.

It is an arithmetic number, because the mean of its divisors is an integer number (10048908856176).

Almost surely, 2^{211113202302123} is an apocalyptic number.

211113202302123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211113202302123 is a deficient number, since it is larger than the sum of its proper divisors (110451881095509).

211113202302123 is a wasteful number, since it uses less digits than its factorization.

211113202302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989845555.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211113202302123 its reverse (321203202311112), we get a palindrome (532316404613235).

The spelling of 211113202302123 in words is "two hundred eleven trillion, one hundred thirteen billion, two hundred two million, three hundred two thousand, one hundred twenty-three".