1213123311013 has 8 divisors (see below), whose sum is σ = 1214881855200. Its totient is φ = 1211365972080.

The previous prime is 1213123311011. The next prime is 1213123311017. The reversal of 1213123311013 is 3101133213121.

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 1213123311013 - 2¹ = 1213123311011 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 (1213123311011) 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, 1723038 + ... + 2322736.

It is an arithmetic number, because the mean of its divisors is an integer number (151860231900).

Almost surely, 2^{1213123311013} is an apocalyptic number.

It is an amenable number.

1213123311013 is a deficient number, since it is larger than the sum of its proper divisors (1758544187).

1213123311013 is a wasteful number, since it uses less digits than its factorization.

1213123311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602627.

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

Adding to 1213123311013 its reverse (3101133213121), we get a palindrome (4314256524134).

The spelling of 1213123311013 in words is "one trillion, two hundred thirteen billion, one hundred twenty-three million, three hundred eleven thousand, thirteen".