1220003020103 has 16 divisors (see below), whose sum is σ = 1400791203840. Its totient is φ = 1040842020096.

The previous prime is 1220003020091. The next prime is 1220003020109. The reversal of 1220003020103 is 3010203000221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1220003020103 - 2⁸ = 1220003019847 is a prime.

It is a super-3 number, since 3×1220003020103³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220003020109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9076058 + ... + 9209496.

It is an arithmetic number, because the mean of its divisors is an integer number (87549450240).

Almost surely, 2^{1220003020103} is an apocalyptic number.

1220003020103 is a deficient number, since it is larger than the sum of its proper divisors (180788183737).

1220003020103 is a wasteful number, since it uses less digits than its factorization.

1220003020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139526.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1220003020103 its reverse (3010203000221), we get a palindrome (4230206020324).

The spelling of 1220003020103 in words is "one trillion, two hundred twenty billion, three million, twenty thousand, one hundred three".