1220323021313 has 8 divisors (see below), whose sum is σ = 1331311782816. Its totient is φ = 1109342644000.

The previous prime is 1220323021297. The next prime is 1220323021391. The reversal of 1220323021313 is 3131203230221.

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 1220323021313 - 2⁴ = 1220323021297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220323021513) 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, 1789763 + ... + 2375688.

It is an arithmetic number, because the mean of its divisors is an integer number (166413972852).

Almost surely, 2^{1220323021313} is an apocalyptic number.

It is an amenable number.

1220323021313 is a deficient number, since it is larger than the sum of its proper divisors (110988761503).

1220323021313 is a wasteful number, since it uses less digits than its factorization.

1220323021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192095.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1220323021313 its reverse (3131203230221), we get a palindrome (4351526251534).

The spelling of 1220323021313 in words is "one trillion, two hundred twenty billion, three hundred twenty-three million, twenty-one thousand, three hundred thirteen".