1203313120 has 24 divisors (see below), whose sum is σ = 2842827624. Its totient is φ = 481325184.

The previous prime is 1203313087. The next prime is 1203313121. The reversal of 1203313120 is 213133021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1203313094 and 1203313103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203313121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3760194 + ... + 3760513.

It is an arithmetic number, because the mean of its divisors is an integer number (118451151).

Almost surely, 2^1203313120 is an apocalyptic number.

1203313120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203313120 is an abundant number, since it is smaller than the sum of its proper divisors (1639514504).

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

1203313120 is an equidigital number, since it uses as much as digits as its factorization.

1203313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520722 (or 7520714 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1203313120 is about 34688.8039574731. The cubic root of 1203313120 is about 1063.6356470065.

Adding to 1203313120 its reverse (213133021), we get a palindrome (1416446141).

The spelling of 1203313120 in words is "one billion, two hundred three million, three hundred thirteen thousand, one hundred twenty".