211312022123 has 8 divisors (see below), whose sum is σ = 214924153200. Its totient is φ = 207700910208.

The previous prime is 211312022107. The next prime is 211312022143. The reversal of 211312022123 is 321220213112.

211312022123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211312022123 - 2⁴ = 211312022107 is a prime.

It is a super-2 number, since 2×211312022123² (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 = 211312022095 and 211312022104.

It is not an unprimeable number, because it can be changed into a prime (211312022143) 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 7 ways as a sum of consecutive naturals, for example, 169415 + ... + 671807.

It is an arithmetic number, because the mean of its divisors is an integer number (26865519150).

Almost surely, 2^211312022123 is an apocalyptic number.

211312022123 is a deficient number, since it is larger than the sum of its proper divisors (3612131077).

211312022123 is an equidigital number, since it uses as much as digits as its factorization.

211312022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509581.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211312022123 its reverse (321220213112), we get a palindrome (532532235235).

The spelling of 211312022123 in words is "two hundred eleven billion, three hundred twelve million, twenty-two thousand, one hundred twenty-three".