1123213013311 has 4 divisors (see below), whose sum is σ = 1139977386712. Its totient is φ = 1106448639912.

The previous prime is 1123213013249. The next prime is 1123213013333. The reversal of 1123213013311 is 1133103123211.

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

It is a cyclic number.

It is not a de Polignac number, because 1123213013311 - 2¹⁵ = 1123212980543 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 (1123213013371) 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, 8382186600 + ... + 8382186733.

It is an arithmetic number, because the mean of its divisors is an integer number (284994346678).

Almost surely, 2^{1123213013311} is an apocalyptic number.

1123213013311 is a deficient number, since it is larger than the sum of its proper divisors (16764373401).

1123213013311 is an equidigital number, since it uses as much as digits as its factorization.

1123213013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16764373400.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1123213013311 its reverse (1133103123211), we get a palindrome (2256316136522).

The spelling of 1123213013311 in words is "one trillion, one hundred twenty-three billion, two hundred thirteen million, thirteen thousand, three hundred eleven".