1220103036 has 72 divisors (see below), whose sum is σ = 3170709360. Its totient is φ = 395426304.

The previous prime is 1220103023. The next prime is 1220103037. The reversal of 1220103036 is 6303010221.

1220103036 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220103037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212775 + ... + 218433.

It is an arithmetic number, because the mean of its divisors is an integer number (44037630).

Almost surely, 2^1220103036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220103036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585354680).

1220103036 is an abundant number, since it is smaller than the sum of its proper divisors (1950606324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220103036 is a wasteful number, since it uses less digits than its factorization.

1220103036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835 (or 5830 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1220103036 is about 34929.9733180545. The cubic root of 1220103036 is about 1068.5598104576.

Adding to 1220103036 its reverse (6303010221), we get a palindrome (7523113257).

The spelling of 1220103036 in words is "one billion, two hundred twenty million, one hundred three thousand, thirty-six".