212030311123 has 8 divisors (see below), whose sum is σ = 218401799616. Its totient is φ = 205715966400.

The previous prime is 212030311099. The next prime is 212030311147. The reversal of 212030311123 is 321113030212.

It is an interprime number because it is at equal distance from previous prime (212030311099) and next prime (212030311147).

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 212030311123 - 2⁵ = 212030311091 is a prime.

It is a super-2 number, since 2×212030311123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212030311123.

It is not an unprimeable number, because it can be changed into a prime (212030311223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14278411 + ... + 14293252.

It is an arithmetic number, because the mean of its divisors is an integer number (27300224952).

Almost surely, 2^212030311123 is an apocalyptic number.

212030311123 is a deficient number, since it is larger than the sum of its proper divisors (6371488493).

212030311123 is a wasteful number, since it uses less digits than its factorization.

212030311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28571885.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212030311123 its reverse (321113030212), we get a palindrome (533143341335).

The spelling of 212030311123 in words is "two hundred twelve billion, thirty million, three hundred eleven thousand, one hundred twenty-three".