1220031303223 has 4 divisors (see below), whose sum is σ = 1227516158008. Its totient is φ = 1212546448440.

The previous prime is 1220031303217. The next prime is 1220031303247. The reversal of 1220031303223 is 3223031300221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220031303223 - 2²⁵ = 1219997748791 is a prime.

It is a super-3 number, since 3×1220031303223³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220031303194 and 1220031303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220031303263) 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, 3742427148 + ... + 3742427473.

It is an arithmetic number, because the mean of its divisors is an integer number (306879039502).

Almost surely, 2^{1220031303223} is an apocalyptic number.

1220031303223 is a deficient number, since it is larger than the sum of its proper divisors (7484854785).

1220031303223 is an equidigital number, since it uses as much as digits as its factorization.

1220031303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484854784.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1220031303223 its reverse (3223031300221), we get a palindrome (4443062603444).

The spelling of 1220031303223 in words is "one trillion, two hundred twenty billion, thirty-one million, three hundred three thousand, two hundred twenty-three".