213320043123 has 48 divisors (see below), whose sum is σ = 314951320320. Its totient is φ = 128328805440.

The previous prime is 213320043119. The next prime is 213320043137. The reversal of 213320043123 is 321340023312.

It is not a de Polignac number, because 213320043123 - 2² = 213320043119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213320043093 and 213320043102.

It is not an unprimeable number, because it can be changed into a prime (213320043323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59936418 + ... + 59939976.

It is an arithmetic number, because the mean of its divisors is an integer number (6561485840).

Almost surely, 2^213320043123 is an apocalyptic number.

213320043123 is a deficient number, since it is larger than the sum of its proper divisors (101631277197).

213320043123 is a wasteful number, since it uses less digits than its factorization.

213320043123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760 (or 4749 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 213320043123 its reverse (321340023312), we get a palindrome (534660066435).

The spelling of 213320043123 in words is "two hundred thirteen billion, three hundred twenty million, forty-three thousand, one hundred twenty-three".