1123412324213 has 4 divisors (see below), whose sum is σ = 1153774819500. Its totient is φ = 1093049828928.

The previous prime is 1123412324173. The next prime is 1123412324263. The reversal of 1123412324213 is 3124232143211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 689286834289 + 434125489924 = 830233^2 + 658882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123412324213 - 2¹² = 1123412320117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123412324263) 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, 15181247588 + ... + 15181247661.

It is an arithmetic number, because the mean of its divisors is an integer number (288443704875).

Almost surely, 2^{1123412324213} is an apocalyptic number.

It is an amenable number.

1123412324213 is a deficient number, since it is larger than the sum of its proper divisors (30362495287).

1123412324213 is an equidigital number, since it uses as much as digits as its factorization.

1123412324213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30362495286.

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

Adding to 1123412324213 its reverse (3124232143211), we get a palindrome (4247644467424).

The spelling of 1123412324213 in words is "one trillion, one hundred twenty-three billion, four hundred twelve million, three hundred twenty-four thousand, two hundred thirteen".