213313434123 has 8 divisors (see below), whose sum is σ = 289080501136. Its totient is φ = 139877661600.

The previous prime is 213313434121. The next prime is 213313434143. The reversal of 213313434123 is 321434313312.

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

It is not a de Polignac number, because 213313434123 - 2¹ = 213313434121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213313434121) 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, 582823408 + ... + 582823773.

It is an arithmetic number, because the mean of its divisors is an integer number (36135062642).

Almost surely, 2^213313434123 is an apocalyptic number.

213313434123 is a deficient number, since it is larger than the sum of its proper divisors (75767067013).

213313434123 is a wasteful number, since it uses less digits than its factorization.

213313434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165647245.

The product of its digits is 15552, while the sum is 30.

Adding to 213313434123 its reverse (321434313312), we get a palindrome (534747747435).

The spelling of 213313434123 in words is "two hundred thirteen billion, three hundred thirteen million, four hundred thirty-four thousand, one hundred twenty-three".