1123211210213 has 8 divisors (see below), whose sum is σ = 1126149974040. Its totient is φ = 1120272710400.

The previous prime is 1123211210153. The next prime is 1123211210221. The reversal of 1123211210213 is 3120121123211.

It can be written as a sum of positive squares in 4 ways, for example, as 95467404484 + 1027743805729 = 308978^2 + 1013777^2 .

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 1123211210213 - 2¹⁶ = 1123211144677 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 (1123211213213) 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, 10768913 + ... + 10872713.

It is an arithmetic number, because the mean of its divisors is an integer number (140768746755).

Almost surely, 2^{1123211210213} is an apocalyptic number.

It is an amenable number.

1123211210213 is a deficient number, since it is larger than the sum of its proper divisors (2938763827).

1123211210213 is a wasteful number, since it uses less digits than its factorization.

1123211210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132007.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1123211210213 its reverse (3120121123211), we get a palindrome (4243332333424).

The spelling of 1123211210213 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, two hundred ten thousand, two hundred thirteen".