1220010103 has 4 divisors (see below), whose sum is σ = 1313857048. Its totient is φ = 1126163160.

The previous prime is 1220010073. The next prime is 1220010107. The reversal of 1220010103 is 3010100221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010100221 = 349 ⋅8624929.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220010103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220010107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46923453 + ... + 46923478.

It is an arithmetic number, because the mean of its divisors is an integer number (328464262).

Almost surely, 2^1220010103 is an apocalyptic number.

1220010103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220010103 is a deficient number, since it is larger than the sum of its proper divisors (93846945).

1220010103 is an equidigital number, since it uses as much as digits as its factorization.

1220010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93846944.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1220010103 is about 34928.6430168708. The cubic root of 1220010103 is about 1068.5326796915.

Adding to 1220010103 its reverse (3010100221), we get a palindrome (4230110324).

The spelling of 1220010103 in words is "one billion, two hundred twenty million, ten thousand, one hundred three".