1223130120 has 32 divisors (see below), whose sum is σ = 3669390720. Its totient is φ = 326168000.

The previous prime is 1223130089. The next prime is 1223130151. The reversal of 1223130120 is 210313221.

It is an interprime number because it is at equal distance from previous prime (1223130089) and next prime (1223130151).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1223130120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5096256 + ... + 5096495.

It is an arithmetic number, because the mean of its divisors is an integer number (114668460).

Almost surely, 2^1223130120 is an apocalyptic number.

1223130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223130120 is an abundant number, since it is smaller than the sum of its proper divisors (2446260600).

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

1223130120 is a wasteful number, since it uses less digits than its factorization.

1223130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192765 (or 10192761 counting only the distinct ones).

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

The square root of 1223130120 is about 34973.2772270487. The cubic root of 1223130120 is about 1069.4427820462.

Adding to 1223130120 its reverse (210313221), we get a palindrome (1433443341).

The spelling of 1223130120 in words is "one billion, two hundred twenty-three million, one hundred thirty thousand, one hundred twenty".