1213343320501 has 8 divisors (see below), whose sum is σ = 1306741058784. Its totient is φ = 1119954673200.

The previous prime is 1213343320487. The next prime is 1213343320523. The reversal of 1213343320501 is 1050233433121.

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 1213343320501 - 2⁷ = 1213343320373 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 1213343320501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213343320561) 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 7 ways as a sum of consecutive naturals, for example, 1994275 + ... + 2530576.

It is an arithmetic number, because the mean of its divisors is an integer number (163342632348).

Almost surely, 2^{1213343320501} is an apocalyptic number.

It is an amenable number.

1213343320501 is a deficient number, since it is larger than the sum of its proper divisors (93397738283).

1213343320501 is a wasteful number, since it uses less digits than its factorization.

1213343320501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545491.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 1213343320501 its reverse (1050233433121), we get a palindrome (2263576753622).

The spelling of 1213343320501 in words is "one trillion, two hundred thirteen billion, three hundred forty-three million, three hundred twenty thousand, five hundred one".