1121313233213 has 4 divisors (see below), whose sum is σ = 1123867477920. Its totient is φ = 1118758988508.

The previous prime is 1121313233137. The next prime is 1121313233231. The reversal of 1121313233213 is 3123323131211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121313233213 - 2¹⁶ = 1121313167677 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 (1121313233263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277121695 + ... + 1277122572.

It is an arithmetic number, because the mean of its divisors is an integer number (280966869480).

Almost surely, 2^{1121313233213} is an apocalyptic number.

It is an amenable number.

1121313233213 is a deficient number, since it is larger than the sum of its proper divisors (2554244707).

1121313233213 is an equidigital number, since it uses as much as digits as its factorization.

1121313233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554244706.

The product of its digits is 1944, while the sum is 26.

Adding to 1121313233213 its reverse (3123323131211), we get a palindrome (4244636364424).

The spelling of 1121313233213 in words is "one trillion, one hundred twenty-one billion, three hundred thirteen million, two hundred thirty-three thousand, two hundred thirteen".