211210130123 has 4 divisors (see below), whose sum is σ = 211211453448. Its totient is φ = 211208806800.

The previous prime is 211210130111. The next prime is 211210130137. The reversal of 211210130123 is 321031012112.

211210130123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211210130123 - 2¹² = 211210126027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211210180123) 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 3 ways as a sum of consecutive naturals, for example, 383186 + ... + 754487.

It is an arithmetic number, because the mean of its divisors is an integer number (52802863362).

Almost surely, 2^211210130123 is an apocalyptic number.

211210130123 is a deficient number, since it is larger than the sum of its proper divisors (1323325).

211210130123 is a wasteful number, since it uses less digits than its factorization.

211210130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323324.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211210130123 its reverse (321031012112), we get a palindrome (532241142235).

The spelling of 211210130123 in words is "two hundred eleven billion, two hundred ten million, one hundred thirty thousand, one hundred twenty-three".