1233012321113 has 4 divisors (see below), whose sum is σ = 1233038530740. Its totient is φ = 1232986111488.

The previous prime is 1233012321071. The next prime is 1233012321131. The reversal of 1233012321113 is 3111232103321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71646158224 + 1161366162889 = 267668^2 + 1077667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233012321113 - 2³⁸ = 958134414169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1233012321133) 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, 13034120 + ... + 13128377.

It is an arithmetic number, because the mean of its divisors is an integer number (308259632685).

Almost surely, 2^{1233012321113} is an apocalyptic number.

It is an amenable number.

1233012321113 is a deficient number, since it is larger than the sum of its proper divisors (26209627).

1233012321113 is an equidigital number, since it uses as much as digits as its factorization.

1233012321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26209626.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1233012321113 its reverse (3111232103321), we get a palindrome (4344244424434).

The spelling of 1233012321113 in words is "one trillion, two hundred thirty-three billion, twelve million, three hundred twenty-one thousand, one hundred thirteen".