1123213123313 has 8 divisors (see below), whose sum is σ = 1134363401640. Its totient is φ = 1112063420800.

The previous prime is 1123213123297. The next prime is 1123213123343. The reversal of 1123213123313 is 3133213123211.

It can be written as a sum of positive squares in 4 ways, for example, as 110235288289 + 1012977835024 = 332017^2 + 1006468^2 .

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 1123213123313 - 2⁴ = 1123213123297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123213123343) 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, 4523981 + ... + 4765797.

It is an arithmetic number, because the mean of its divisors is an integer number (141795425205).

Almost surely, 2^{1123213123313} is an apocalyptic number.

It is an amenable number.

1123213123313 is a deficient number, since it is larger than the sum of its proper divisors (11150278327).

1123213123313 is a wasteful number, since it uses less digits than its factorization.

1123213123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287907.

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

Adding to 1123213123313 its reverse (3133213123211), we get a palindrome (4256426246524).

The spelling of 1123213123313 in words is "one trillion, one hundred twenty-three billion, two hundred thirteen million, one hundred twenty-three thousand, three hundred thirteen".