1123013323213 has 4 divisors (see below), whose sum is σ = 1123204350240. Its totient is φ = 1122822296188.

The previous prime is 1123013323207. The next prime is 1123013323297. The reversal of 1123013323213 is 3123233103211.

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 a de Polignac number, because none of the positive numbers 2^k-1123013323213 is a prime.

It is a super-2 number, since 2×1123013323213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123013323813) 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, 95504695 + ... + 95516452.

It is an arithmetic number, because the mean of its divisors is an integer number (280801087560).

Almost surely, 2^{1123013323213} is an apocalyptic number.

It is an amenable number.

1123013323213 is a deficient number, since it is larger than the sum of its proper divisors (191027027).

1123013323213 is an equidigital number, since it uses as much as digits as its factorization.

1123013323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191027026.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1123013323213 its reverse (3123233103211), we get a palindrome (4246246426424).

The spelling of 1123013323213 in words is "one trillion, one hundred twenty-three billion, thirteen million, three hundred twenty-three thousand, two hundred thirteen".