1213031013303 has 8 divisors (see below), whose sum is σ = 1618822651888. Its totient is φ = 807963358464.

The previous prime is 1213031013289. The next prime is 1213031013349. The reversal of 1213031013303 is 3033101303121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213031013303 - 2¹² = 1213031009207 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 1213031013303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213031013503) 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, 180992026 + ... + 180998727.

It is an arithmetic number, because the mean of its divisors is an integer number (202352831486).

Almost surely, 2^{1213031013303} is an apocalyptic number.

1213031013303 is a deficient number, since it is larger than the sum of its proper divisors (405791638585).

1213031013303 is a wasteful number, since it uses less digits than its factorization.

1213031013303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361991873.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1213031013303 its reverse (3033101303121), we get a palindrome (4246132316424).

The spelling of 1213031013303 in words is "one trillion, two hundred thirteen billion, thirty-one million, thirteen thousand, three hundred three".