1213522074113 has 4 divisors (see below), whose sum is σ = 1214665828308. Its totient is φ = 1212378319920.

The previous prime is 1213522074109. The next prime is 1213522074133. The reversal of 1213522074113 is 3114702253121.

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 514530766864 + 698991307249 = 717308^2 + 836057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213522074113 - 2² = 1213522074109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213522074113.

It is not an unprimeable number, because it can be changed into a prime (1213522074133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571875506 + ... + 571877627.

It is an arithmetic number, because the mean of its divisors is an integer number (303666457077).

Almost surely, 2^{1213522074113} is an apocalyptic number.

It is an amenable number.

1213522074113 is a deficient number, since it is larger than the sum of its proper divisors (1143754195).

1213522074113 is a wasteful number, since it uses less digits than its factorization.

1213522074113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143754194.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 1213522074113 in words is "one trillion, two hundred thirteen billion, five hundred twenty-two million, seventy-four thousand, one hundred thirteen".