1213010311303 has 16 divisors (see below), whose sum is σ = 1393296675840. Its totient is φ = 1034486693856.

The previous prime is 1213010311267. The next prime is 1213010311321. The reversal of 1213010311303 is 3031130103121.

It is a de Polignac number, because none of the positive numbers 2^k-1213010311303 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 (1213010311333) 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 15 ways as a sum of consecutive naturals, for example, 585333 + ... + 1663921.

It is an arithmetic number, because the mean of its divisors is an integer number (87081042240).

Almost surely, 2^{1213010311303} is an apocalyptic number.

1213010311303 is a deficient number, since it is larger than the sum of its proper divisors (180286364537).

1213010311303 is a wasteful number, since it uses less digits than its factorization.

1213010311303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079406.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1213010311303 its reverse (3031130103121), we get a palindrome (4244140414424).

The spelling of 1213010311303 in words is "one trillion, two hundred thirteen billion, ten million, three hundred eleven thousand, three hundred three".