213112222223123 has 8 divisors (see below), whose sum is σ = 215687170984560. Its totient is φ = 210548542384800.

The previous prime is 213112222223071. The next prime is 213112222223161. The reversal of 213112222223123 is 321322222211312.

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 213112222223123 - 2³⁴ = 213095042353939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213112222223623) 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, 2817192728 + ... + 2817268373.

It is an arithmetic number, because the mean of its divisors is an integer number (26960896373070).

Almost surely, 2^{213112222223123} is an apocalyptic number.

213112222223123 is a deficient number, since it is larger than the sum of its proper divisors (2574948761437).

213112222223123 is a wasteful number, since it uses less digits than its factorization.

213112222223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634461557.

The product of its digits is 6912, while the sum is 29.

Adding to 213112222223123 its reverse (321322222211312), we get a palindrome (534434444434435).

The spelling of 213112222223123 in words is "two hundred thirteen trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-three thousand, one hundred twenty-three".