1220031303103 has 4 divisors (see below), whose sum is σ = 1220065326000. Its totient is φ = 1219997280208.

The previous prime is 1220031303083. The next prime is 1220031303109. The reversal of 1220031303103 is 3013031300221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220031303103 is a prime.

It is a super-3 number, since 3×1220031303103³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220031303109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16957603 + ... + 17029396.

It is an arithmetic number, because the mean of its divisors is an integer number (305016331500).

Almost surely, 2^{1220031303103} is an apocalyptic number.

1220031303103 is a deficient number, since it is larger than the sum of its proper divisors (34022897).

1220031303103 is an equidigital number, since it uses as much as digits as its factorization.

1220031303103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34022896.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1220031303103 its reverse (3013031300221), we get a palindrome (4233062603324).

The spelling of 1220031303103 in words is "one trillion, two hundred twenty billion, thirty-one million, three hundred three thousand, one hundred three".