1311033223203 has 8 divisors (see below), whose sum is σ = 1906957415616. Its totient is φ = 794565589800.

The previous prime is 1311033223189. The next prime is 1311033223243. The reversal of 1311033223203 is 3023223301131.

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

It is not a de Polignac number, because 1311033223203 - 2⁴ = 1311033223187 is a prime.

It is a super-2 number, since 2×1311033223203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311033223243) 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, 19864139713 + ... + 19864139778.

It is an arithmetic number, because the mean of its divisors is an integer number (238369676952).

Almost surely, 2^{1311033223203} is an apocalyptic number.

1311033223203 is a deficient number, since it is larger than the sum of its proper divisors (595924192413).

1311033223203 is a wasteful number, since it uses less digits than its factorization.

1311033223203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39728279505.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1311033223203 its reverse (3023223301131), we get a palindrome (4334256524334).

The spelling of 1311033223203 in words is "one trillion, three hundred eleven billion, thirty-three million, two hundred twenty-three thousand, two hundred three".