1223021103 has 16 divisors (see below), whose sum is σ = 1676677632. Its totient is φ = 792504000.

The previous prime is 1223021099. The next prime is 1223021131. The reversal of 1223021103 is 3011203221.

1223021103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1223021103 - 2² = 1223021099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223021183) 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, 14988 + ... + 51678.

It is an arithmetic number, because the mean of its divisors is an integer number (104792352).

Almost surely, 2^1223021103 is an apocalyptic number.

1223021103 is a deficient number, since it is larger than the sum of its proper divisors (453656529).

1223021103 is a wasteful number, since it uses less digits than its factorization.

1223021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37006.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1223021103 is about 34971.7186166193. The cubic root of 1223021103 is about 1069.4110081284.

Adding to 1223021103 its reverse (3011203221), we get a palindrome (4234224324).

It can be divided in two parts, 12230 and 21103, that added together give a palindrome (33333).

The spelling of 1223021103 in words is "one billion, two hundred twenty-three million, twenty-one thousand, one hundred three".