1213233310213 has 4 divisors (see below), whose sum is σ = 1213890179040. Its totient is φ = 1212576441388.

The previous prime is 1213233310187. The next prime is 1213233310229. The reversal of 1213233310213 is 3120133323121.

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 1213233310213 - 2⁵ = 1213233310181 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 (1213233310243) 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, 328431643 + ... + 328435336.

It is an arithmetic number, because the mean of its divisors is an integer number (303472544760).

Almost surely, 2^{1213233310213} is an apocalyptic number.

It is an amenable number.

1213233310213 is a deficient number, since it is larger than the sum of its proper divisors (656868827).

1213233310213 is an equidigital number, since it uses as much as digits as its factorization.

1213233310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656868826.

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

Adding to 1213233310213 its reverse (3120133323121), we get a palindrome (4333366633334).

The spelling of 1213233310213 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, three hundred ten thousand, two hundred thirteen".