1223203313313 has 128 divisors (see below), whose sum is σ = 1936052275200. Its totient is φ = 771573600000.

The previous prime is 1223203313303. The next prime is 1223203313341. The reversal of 1223203313313 is 3133133023221.

1223203313313 is a `hidden beast` number, since 1 + 2 + 2 + 32 + 0 + 3 + 313 + 313 = 666.

It is not a de Polignac number, because 1223203313313 - 2²⁰ = 1223202264737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1223203313303) 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 127 ways as a sum of consecutive naturals, for example, 1628765688 + ... + 1628766438.

It is an arithmetic number, because the mean of its divisors is an integer number (15125408400).

Almost surely, 2^{1223203313313} is an apocalyptic number.

It is an amenable number.

1223203313313 is a deficient number, since it is larger than the sum of its proper divisors (712848961887).

1223203313313 is an frugal number, since it uses more digits than its factorization.

1223203313313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1223203313313 its reverse (3133133023221), we get a palindrome (4356336336534).

The spelling of 1223203313313 in words is "one trillion, two hundred twenty-three billion, two hundred three million, three hundred thirteen thousand, three hundred thirteen".