1203340520 has 32 divisors (see below), whose sum is σ = 2737945800. Its totient is φ = 475926528.

The previous prime is 1203340513. The next prime is 1203340531. The reversal of 1203340520 is 250433021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1043419204 + 159921316 = 32302^2 + 12646^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1203340492 and 1203340501.

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, 165449 + ... + 172568.

Almost surely, 2^1203340520 is an apocalyptic number.

1203340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203340520 is an abundant number, since it is smaller than the sum of its proper divisors (1534605280).

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

1203340520 is a wasteful number, since it uses less digits than its factorization.

1203340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338117 (or 338113 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1203340520 is about 34689.1988953334. The cubic root of 1203340520 is about 1063.6437201049.

Adding to 1203340520 its reverse (250433021), we get a palindrome (1453773541).

The spelling of 1203340520 in words is "one billion, two hundred three million, three hundred forty thousand, five hundred twenty".