1123213372311 has 4 divisors (see below), whose sum is σ = 1497617829752. Its totient is φ = 748808914872.

The previous prime is 1123213372271. The next prime is 1123213372357. The reversal of 1123213372311 is 1132733123211.

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

It is not a de Polignac number, because 1123213372311 - 2¹¹ = 1123213370263 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 (1123213372381) 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, 187202228716 + ... + 187202228721.

It is an arithmetic number, because the mean of its divisors is an integer number (374404457438).

Almost surely, 2^{1123213372311} is an apocalyptic number.

1123213372311 is a deficient number, since it is larger than the sum of its proper divisors (374404457441).

1123213372311 is an equidigital number, since it uses as much as digits as its factorization.

1123213372311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374404457440.

The product of its digits is 4536, while the sum is 30.

Adding to 1123213372311 its reverse (1132733123211), we get a palindrome (2255946495522).

The spelling of 1123213372311 in words is "one trillion, one hundred twenty-three billion, two hundred thirteen million, three hundred seventy-two thousand, three hundred eleven".