212310302123 has 16 divisors (see below), whose sum is σ = 225805328640. Its totient is φ = 199186182624.

The previous prime is 212310302111. The next prime is 212310302207. The reversal of 212310302123 is 321203013212.

It is a cyclic number.

It is not a de Polignac number, because 212310302123 - 2⁶ = 212310302059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212310302095 and 212310302104.

It is not an unprimeable number, because it can be changed into a prime (212310302723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424565 + ... + 777737.

It is an arithmetic number, because the mean of its divisors is an integer number (14112833040).

Almost surely, 2^212310302123 is an apocalyptic number.

212310302123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212310302123 is a deficient number, since it is larger than the sum of its proper divisors (13495026517).

212310302123 is a wasteful number, since it uses less digits than its factorization.

212310302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353698.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212310302123 its reverse (321203013212), we get a palindrome (533513315335).

The spelling of 212310302123 in words is "two hundred twelve billion, three hundred ten million, three hundred two thousand, one hundred twenty-three".