1223103000 has 128 divisors (see below), whose sum is σ = 4361310720. Its totient is φ = 279561600.

The previous prime is 1223102999. The next prime is 1223103001. The reversal of 1223103000 is 3013221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1223102999) and next prime (1223103001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223103001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8122 + ... + 50121.

It is an arithmetic number, because the mean of its divisors is an integer number (34072740).

Almost surely, 2^1223103000 is an apocalyptic number.

1223103000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2180655360).

1223103000 is an abundant number, since it is smaller than the sum of its proper divisors (3138207720).

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

1223103000 is a wasteful number, since it uses less digits than its factorization.

1223103000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58274 (or 58260 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1223103000 is about 34972.8895002972. The cubic root of 1223103000 is about 1069.4348778715.

Adding to 1223103000 its reverse (3013221), we get a palindrome (1226116221).

The spelling of 1223103000 in words is "one billion, two hundred twenty-three million, one hundred three thousand".