211301020123 has 16 divisors (see below), whose sum is σ = 217389744000. Its totient is φ = 205315361856.

The previous prime is 211301020111. The next prime is 211301020127. The reversal of 211301020123 is 321020103112.

211301020123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211301020123 - 2³³ = 202711085531 is a prime.

It is a super-2 number, since 2×211301020123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211301020097 and 211301020106.

It is not an unprimeable number, because it can be changed into a prime (211301020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1607128 + ... + 1733626.

It is an arithmetic number, because the mean of its divisors is an integer number (13586859000).

Almost surely, 2^211301020123 is an apocalyptic number.

211301020123 is a deficient number, since it is larger than the sum of its proper divisors (6088723877).

211301020123 is a wasteful number, since it uses less digits than its factorization.

211301020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126906.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211301020123 its reverse (321020103112), we get a palindrome (532321123235).

The spelling of 211301020123 in words is "two hundred eleven billion, three hundred one million, twenty thousand, one hundred twenty-three".