1213103311213 has 8 divisors (see below), whose sum is σ = 1244177438976. Its totient is φ = 1182332346000.

The previous prime is 1213103311207. The next prime is 1213103311271. The reversal of 1213103311213 is 3121133013121.

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 1213103311213 - 2⁵ = 1213103311181 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 (1213103311283) 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, 75782533 + ... + 75798538.

It is an arithmetic number, because the mean of its divisors is an integer number (155522179872).

Almost surely, 2^{1213103311213} is an apocalyptic number.

It is an amenable number.

1213103311213 is a deficient number, since it is larger than the sum of its proper divisors (31074127763).

1213103311213 is a wasteful number, since it uses less digits than its factorization.

1213103311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151581275.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1213103311213 its reverse (3121133013121), we get a palindrome (4334236324334).

The spelling of 1213103311213 in words is "one trillion, two hundred thirteen billion, one hundred three million, three hundred eleven thousand, two hundred thirteen".