1220323012133 has 4 divisors (see below), whose sum is σ = 1220447710080. Its totient is φ = 1220198314188.

The previous prime is 1220323012093. The next prime is 1220323012159. The reversal of 1220323012133 is 3312103230221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220323012133 - 2¹⁰ = 1220323011109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220323012099 and 1220323012108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220323012193) 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 3 ways as a sum of consecutive naturals, for example, 62334293 + ... + 62353866.

It is an arithmetic number, because the mean of its divisors is an integer number (305111927520).

Almost surely, 2^{1220323012133} is an apocalyptic number.

It is an amenable number.

1220323012133 is a deficient number, since it is larger than the sum of its proper divisors (124697947).

1220323012133 is an equidigital number, since it uses as much as digits as its factorization.

1220323012133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124697946.

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

Adding to 1220323012133 its reverse (3312103230221), we get a palindrome (4532426242354).

The spelling of 1220323012133 in words is "one trillion, two hundred twenty billion, three hundred twenty-three million, twelve thousand, one hundred thirty-three".