213214213123 has 4 divisors (see below), whose sum is σ = 213284145400. Its totient is φ = 213144280848.

The previous prime is 213214213099. The next prime is 213214213151. The reversal of 213214213123 is 321312412312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213214213123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213214213153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34961565 + ... + 34967662.

It is an arithmetic number, because the mean of its divisors is an integer number (53321036350).

Almost surely, 2^213214213123 is an apocalyptic number.

213214213123 is a deficient number, since it is larger than the sum of its proper divisors (69932277).

213214213123 is an equidigital number, since it uses as much as digits as its factorization.

213214213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69932276.

The product of its digits is 1728, while the sum is 25.

Adding to 213214213123 its reverse (321312412312), we get a palindrome (534526625435).

The spelling of 213214213123 in words is "two hundred thirteen billion, two hundred fourteen million, two hundred thirteen thousand, one hundred twenty-three".